App ideas. Each one ships with a build prompt.
Every idea here comes with the market angle, the MVP scope, and a ready-to-paste prompt for Cursor, Claude Code, Lovable, or Bolt. Copy. Paste. Ship.
// All ideas
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Week-by-week ACL recovery companion
ACL patients drift between PT visits unsure if they are on track; a week-by-week rehab timeline with milestone checks keeps recovery honest.
Consumer Mobile 1 month -
ATS duplicate checker while sourcing on LinkedIn
Agency recruiters waste outreach on candidates already in their ATS; this extension flags known profiles and past contact history as they browse.
B2B Chrome extension 1 week -
Compliant labels for cottage food producers
Home bakers and small food producers hand-make labels that violate state cottage food rules; this generates compliant labels with allergens per state.
B2B weekend -
Body-doubling app for ADHD focus
Match people into silent 50-minute co-working video sessions. Body doubling is a proven ADHD focus technique with a community already paying for it.
SaaS 1 week -
App store reviews filed as GitHub issues
Bug reports buried in app store reviews never reach the tracker; this clusters new reviews and files deduped GitHub issues nightly.
Dev tool 1 week -
Hour compliance tracker for host families
Host families risk State Department violations tracking au pair hours on paper; log schedules against weekly and daily limits with warnings.
Consumer 1 week -
Deprecation countdowns for the APIs you use
Stripe and Shopify deprecations hide in changelogs until things break; this scans your code for affected calls and gives you a countdown.
Dev tool 1 month -
Nightly restore drills for database backups
A backup you've never restored is a guess; this restores your Postgres dump to a scratch instance nightly and proves the data is intact.
Dev tool 1 week -
Bait station scanning for pest control routes
Pest control techs hand-log rodent station checks that commercial clients audit; this scans station QR codes and builds the service report on site.
B2B Mobile 1 month -
Target species finder for birding trips
Traveling birders manually cross-check life lists against trip locations; connect eBird and see exactly which target species a trip could add.
Consumer 1 week -
Gig money splitting for working bands
Working bands split gig pay with screenshot math and grudges; log the gig, set cuts and expenses, and everyone sees who owes what plus tax totals.
Micro-SaaS weekend -
Client document chasing for bookkeepers
Bookkeepers stall every month-end waiting on client documents; a per-client checklist portal with escalating reminders until items arrive.
SaaS 1 week -
Belt testing and curriculum tracker for martial arts schools
Martial arts school owners track student stripes and testing eligibility on index cards; this tracks progress, flags who is ready, and runs test day.
B2B 1 week -
Rent collection for salon booth renters
Salon owners chase booth rent in cash and texts; this auto-bills weekly rent, tracks renter insurance and license expiry, and flags late payers.
B2B 1 week -
Tap list sync for breweries
Breweries retype tap lists into their site, TV, and print menus; update once and sync everywhere, including a taproom TV display.
SaaS weekend -
CACFP meal counting and claims for daycares
Daycares in the federal food program hand-tally meal counts for reimbursement; this records point-of-service counts and builds the monthly claim.
B2B 1 month -
Sports card catalog with live comps
Card collectors price their collections tab by tab through eBay sold listings; catalog cards once and get live comps and portfolio value in one place.
Consumer 1 week -
Tool calibration due-date tracker for machine shops
Machine shops fail ISO audits over out-of-cal micrometers and gauges; this tracks every instrument's calibration schedule and prints audit records.
B2B weekend -
Hosted monitoring and alerts for BullMQ queues
A stuck BullMQ queue can silently eat jobs for days; hosted dashboards, dead-letter alerts and retry controls without running Grafana.
Dev tool 1 week -
Wine cellar tracker with drink-by alerts
Wine collectors forget what is in the cellar until bottles pass their peak; an inventory with drink-by windows sends alerts before wines fade.
Consumer Mobile 1 month -
Carrier onboarding for small freight brokers
Freight brokers onboard trucking carriers via email attachments and FMCSA lookups; this automates packet collection, insurance checks, and vetting.
B2B 1 month -
Certified payroll reports for small contractors
Contractors on government jobs must file WH-347 certified payroll weekly; this turns timesheets into compliant reports without a payroll consultant.
B2B 1 month -
Row counter that understands knitting charts
Knitters lose their place in charted patterns mid-row; a counter that understands repeats, charts, and multiple pieces keeps big projects on track.
Consumer Mobile 1 week -
Banquet event orders for independent caterers
Caterers rebuild event details across quotes, kitchen sheets, and packing lists; this builds one BEO that generates all three plus change tracking.
B2B 1 month -
Document chasing portal for bookkeepers
Bookkeepers waste hours nagging clients for bank statements and receipts; this sends a checklist link and auto-reminds until every document lands.
B2B 1 week -
Project handoff portals for freelance developers
Freelance devs end projects with a messy Drive dump; hand clients one branded portal with credentials, docs, videos and renewal dates.
Dev tool 1 week -
Sweep certificates and annual reminders for chimney sweeps
Chimney sweeps hand-write the certificates insurers demand and forget last year's customers; issue branded PDF certificates plus annual rebooking nags.
Micro-SaaS weekend -
Volunteer scheduling with swaps for small churches
Small-church volunteer rotas live in spreadsheets and group chats; this schedules teams, texts reminders, and handles swaps without the coordinator.
Micro-SaaS 1 week -
Custom cake order intake for bakers
Home bakers take custom cake orders in Instagram DMs and miss details; a structured order form with date capacity, deposits, and a pickup calendar.
SaaS weekend -
Shared college application deadline board
Parents and teens track a dozen application deadlines in separate heads; one shared board for essays, deadlines, fees, and scholarship dates.
Consumer 1 week -
Dead code cleanup for AI-built codebases
AI coding sessions leave orphan files and duplicate components everywhere; this maps the dead weight in a repo and opens deletion PRs.
Dev tool 1 month -
Share management for CSA farms
CSA farms drown in spreadsheets managing shares; subscriptions, weekly box swaps, vacation holds, and pickup-site rosters in one place.
SaaS 1 month -
Case tracking and due dates for dental labs
Small dental labs track crowns and dentures on whiteboards and blow due dates dentists never forget; this tracks each case from impression to delivery.
Micro-SaaS 1 month -
Custom cake orders with deposits and date caps
Home bakers manage custom cake orders in Instagram DMs and get stiffed on deposits; an order form takes specs, caps busy weekends, collects deposits.
Micro-SaaS 1 month -
Detention time logger for owner-operator truckers
Truckers wait unpaid hours at docks because they can't prove detention; this timestamps arrival and departure with GPS and generates billing evidence.
B2B weekend -
Image size diffs on every pull request
Docker images balloon a layer at a time; a CI comment shows the size diff on every PR and names the layer that caused it.
Dev tool weekend -
License-plate instant quotes for mobile detailers
Mobile detailers lose leads to quote phone-tag; customers enter a plate, the tool looks up vehicle size and returns a firm, bookable price.
Micro-SaaS 1 week -
Live 86 board for restaurant kitchens and servers
Servers sell dishes the kitchen ran out of, causing comps and angry tables; this is a live 86 list the kitchen updates and every server phone shows.
B2B weekend -
Room reset checklists for escape rooms
Escape rooms refund games ruined by a missed prop reset; per-room reset checklists with photo checks that staff run between bookings.
SaaS weekend -
Scheduling and progress for driving schools
Driving schools juggle instructors, pickups, and permit rules by phone; scheduling with pickup locations, lesson packages, and test readiness tracking.
SaaS 1 month -
Fair picking rounds for family heirlooms
Dividing a parent's belongings quietly turns siblings against each other; photograph items and run fair round-robin picks everyone agreed to.
Consumer 1 week -
Made-to-order production board for Etsy sellers
Made-to-order Etsy sellers juggle deadlines on paper lists; this turns orders into a production queue sorted by ship-by date with batching.
Micro-SaaS 1 week -
Filament inventory and print cost tracker
3D printing hobbyists lose track of half-used spools and real print costs; inventory filament by weight and get true cost per print automatically.
Consumer weekend -
Flaky test detector for GitHub Actions
Flaky tests waste hours of CI reruns; this analyzes GitHub Actions history, ranks the worst offenders, and auto-quarantines them via PR.
Dev tool 1 month -
Vaccine expiry tracking for dog daycares
Dog daycares get burned by expired rabies records at check-in; track vaccine expirations and auto-request updated records from owners.
SaaS 1 week -
Order and route manager for firewood sellers
Firewood sellers run phone-order chaos every fall; an order page with cord pricing by delivery zone, a route list, and payment collection.
SaaS weekend -
Health inspection prep logs for food trucks
Food truck operators fail health inspections over missing temp and cleaning logs; this is a dead-simple daily log that prints inspector-ready records.
B2B weekend -
Location calendar and alerts for food trucks
Food trucks announce locations in scattered Instagram posts; one weekly schedule that updates the website, Google profile, and fan SMS alerts.
SaaS 1 week -
Auto-updating location page for food trucks
Food truck fans ask where are you today all day; one drag-pin schedule updates a public page, business hours, and an SMS blast at once.
Micro-SaaS weekend -
Fast printed program layouts for funeral homes
Funeral homes lay out memorial programs in Word under 48-hour deadlines; families fill a link with photos and text, a print-ready program comes out.
Micro-SaaS weekend -
Photo gallery expiry warnings that sell prints
Wedding photographers' client galleries expire silently; drip gallery-closing emails to clients and guests to drive last-chance print sales.
Micro-SaaS weekend -
Medication board for rescue foster homes
Rescue fosters juggle med schedules for a rotating cast of animals; a per-animal med board with dose logs the rescue coordinator can see.
Consumer 1 week -
Seed starting calendar from your frost date
Vegetable gardeners guess sowing dates and miss succession windows; enter a frost date and get a week-by-week seed starting and planting calendar.
Consumer 1 week -
Production board for made-to-order sellers
Made-to-order sellers lose orders in Etsy and Shopify tabs; one production board with stages and ship-by-date risk flags across both shops.
SaaS 1 week -
Invoice chaser for freelancers
Automatically send polite, escalating follow-up emails for unpaid invoices. Freelancers hate chasing money more than any other task.
Micro-SaaS weekend -
Vaccination record chasing for dog groomers
Grooming salons must verify rabies records but chase owners by phone; this tracks expiries and auto-texts owners for updated certificates.
Micro-SaaS weekend -
CI cost overlay inside the GitHub UI
CI minutes burn money invisibly; this overlays dollar costs and cache-miss warnings on every workflow run right in the GitHub UI.
Dev tool Chrome extension weekend -
Violation letters with photo evidence for HOA managers
HOA managers draft violation notices one by one in Word; this logs violations with photos, generates escalating letters, and tracks cure deadlines.
B2B weekend -
Seasonal CRM for holiday light installers
Holiday light installers rebuild their book every season; quotes by linear foot, install and takedown crews, and auto rehang offers next fall.
SaaS 1 week -
Food and symptom log for histamine intolerance
People with histamine intolerance play elimination-diet detective alone; log foods and symptoms and see correlations doctors rarely have time to find.
Consumer Mobile 1 month -
Photo to mailed HOA violation notice
Small HOA managers snap a photo, pick a rule, and the tool generates, prints, and certified-mails the compliant violation letter with an audit trail.
Micro-SaaS 1 month -
Offline hive inspection logs for beekeepers
Beekeepers scribble hive inspections on cards and lose queen history; per-hive logs that work offline in the beeyard, with treatment schedules.
SaaS Mobile 1 week -
Waitlist and tour management for home daycares
Home daycares track waitlists in notebooks and lose families to ghosting; this ranks the waitlist, schedules tours, and collects holding deposits.
Micro-SaaS 1 week -
Board billing with add-ons for horse barns
Barn managers rebuild each month's board bill from texts and memory; log add-ons like farrier, meds, and extra hay as they happen, invoices build themselves.
Micro-SaaS 1 month -
Visit reports for home watch companies
Home watch companies checking snowbird houses report by text and photos; guided visit checklists that produce branded, timestamped PDF reports.
SaaS 1 week -
Shared care calendar for horse owners
Horse owners juggle farrier, vet, worming, and lesson schedules across barns; one shared calendar per horse keeps owner, barn, and pros in sync.
Consumer Mobile 1 week -
Barn management for horse boarding stables
Boarding barns run feed charts and board billing on whiteboards; stall assignments, per-horse care instructions, and monthly billing with add-ons.
SaaS 1 month -
Maintenance agreement tracker for HVAC shops
Small HVAC shops lose recurring revenue when service agreements lapse; this tracks contracts, auto-reminds customers, and schedules seasonal visits.
B2B 1 week -
Keg fleet tracking for self-distributing breweries
Small breweries lose about a tenth of their kegs yearly to bars that never return them; scan-out and scan-in shows which account is sitting on what.
Micro-SaaS 1 week -
Clean RSVP pages for kids parties
Kids party invites die in ad-swamped Evite threads and unanswered texts; a clean RSVP page collecting headcount and allergies with no app needed.
Consumer weekend -
Missing translation catcher for locale files
Shipping with missing translation keys embarrasses you in every locale; CI catches drift between locale files and drafts the gaps.
Dev tool weekend -
Photo quotes for junk removal crews
Junk removal crews waste half a day driving to estimates; customers text photos, you price from a quote board, they book and pay online.
SaaS weekend -
Unit turnover board for property managers
Property managers coordinate paint, clean, and repair between tenants over text; this is a per-unit make-ready checklist with vendor deadlines.
B2B 1 week -
Token cost breakdown per feature and customer
Your OpenAI bill is one opaque number; a drop-in proxy tags every call so you see token spend per feature, per customer, per deploy.
Dev tool 1 week -
Kiln firing scheduler for pottery studios
Pottery studios book kiln firings through a wall calendar; members reserve shelf space per firing and pay online, staff see what to load.
SaaS 1 week -
Slip waitlists and renewals for marinas
Marinas run slip waitlists on paper and clipboard renewals; waitlists matched by boat length and draft, with offers, deposits, and renewals online.
SaaS 1 week -
Batch log and alarms for mead makers
Mead and cider makers miss staggered nutrient additions and ruin batches; timed alarms and batch logs keep every ferment on schedule.
Consumer Mobile 1 week -
Finds and permissions log for detectorists
Detectorists lose track of finds, hunted ground, and landowner permissions; GPS-pinned finds and permission records live in one pocket logbook.
Consumer Mobile 1 week -
Mini session booking for photographers
Photographers sell 15-minute mini sessions in DMs and double-book slots; a booking page built for slot blocks, deposits, and waitlists.
SaaS weekend -
Fast SOAP notes with body diagrams for massage therapists
Solo massage therapists owe insurers and boards SOAP notes but hate typing after sessions; tap a body diagram, get a compliant note in a minute.
Micro-SaaS 1 month -
Vendor and stall management for market organizers
Farmers market organizers wrangle vendor applications, insurance docs, and stall maps in email; this handles applications, assignments, and fees.
B2B 1 week -
Uptime and schema drift monitor for MCP servers
MCP servers fail silently and agents just get dumber; uptime checks plus tool-schema drift alerts for the servers your team depends on.
Dev tool weekend -
Makeup lesson credits for music studios
Music teachers drown in makeup-lesson IOUs tracked in notebooks; this issues credits on cancellation and lets parents self-book open makeup slots.
Micro-SaaS 1 week -
Turn real API traffic into MSW mocks
Writing API mocks by hand is tedious guesswork; record real traffic in DevTools and export ready-to-use MSW handlers and fixtures.
Dev tool Chrome extension weekend -
QR box labels for DIY moves
DIY movers open ten boxes hunting for the kettle; print QR labels, snap contents while packing, and search every box from your phone later.
Consumer Mobile 1 week -
Schedule and cost ledger for nanny shares
Nanny-share families reconcile hours, sick days, and cost splits over text; a shared schedule and monthly ledger both households can trust.
Consumer 1 week -
Sponsor slot management for newsletter operators
Newsletter writers track sponsor bookings, creative deadlines, and invoices across spreadsheets and email; this manages slots, assets, and billing.
Micro-SaaS 1 week -
Job and fee tracker for signing agents
Loan signing agents juggle jobs from five signing services and wait months to get paid; one board tracking jobs, fees owed, and aging invoices.
SaaS weekend -
Breaking change alerts for third-party APIs
Third-party APIs break your integration without warning; this watches their OpenAPI specs and alerts you before deprecated fields hit prod.
Dev tool 1 week -
Daily canary tests for OAuth sign-in
Google or Slack quietly breaks your OAuth and signups die; headless logins run daily against your app and page you before users notice.
Dev tool 1 month -
Live availability lists for wholesale nurseries
Wholesale plant nurseries email PDF availability lists weekly; a live availability page landscapers can order from, synced from a spreadsheet.
SaaS 1 week -
Tester coordination for knitting pattern designers
Knit and crochet designers wrangle pattern testers through Instagram DMs and missed deadlines; run applications, check-ins, and photo collection.
Micro-SaaS weekend -
Photo inspections that sell auto repair work
Independent auto shops struggle to get approval for needed repairs; this sends customers a photo inspection report with tap-to-approve line items.
B2B 1 month -
Round robin ladders for pickleball groups
Pickleball organizers run ladders on whiteboards and reply-all email; auto-generated round robins, live standings, and next-week matchups.
Consumer 1 week -
Chemical logs and visit reports for pool techs
Pool techs scribble chemical readings on door hangers; log readings in seconds, get dosing math, and send customers proof-of-service each visit.
Micro-SaaS 1 week -
One-link guest intake for podcasters
Podcast hosts chase guests for bios, headshots, and consent across endless email threads; one intake link collects everything, filed per episode.
Micro-SaaS weekend -
Pool test strip photo dosing calculator
Pool owners guess at chemical doses and overshoot; snap a test strip photo and get exact dosing amounts for your pool volume and chemicals.
Consumer Mobile 1 month -
Job queue and costing for 3D print farms
Etsy 3D-print sellers juggle which printer runs what and guess at filament costs; queue jobs across printers and price parts from weight and time.
Micro-SaaS 1 week -
Dangerous migration linter as a GitHub app
A single ALTER TABLE can lock production for minutes; this GitHub app flags dangerous Postgres migrations in the PR before they merge.
Dev tool weekend -
Instant quote widget for pressure washers
Pressure washers lose jobs to whoever quotes first; an instant ballpark quote widget that prices driveways and siding and captures the lead.
SaaS weekend -
Progress log for reactive dog training
Owners of reactive dogs can't see progress between trainer sessions; log triggers, distances, and reactions to map real improvement over months.
Consumer Mobile 1 week -
Reconditioning pipeline board for used car dealers
Independent dealers lose track of cars stuck at detail or mechanic shops; this tracks each vehicle's recon steps and days-to-frontline cost.
B2B 1 week -
Proof approval portal for sign and print shops
Sign shops chase artwork approvals through email chains and eat the cost of printing unapproved errors; this tracks proofs, versions, and sign-offs.
B2B 1 week -
Anonymized production clones for staging
Staging needs prod-shaped data but not real PII; nightly clones your Postgres with names, emails and cards scrubbed but relations intact.
Dev tool 1 month -
Leg and van planner for relay races
Relay captains build 36-leg schedules in fragile spreadsheets; enter runner paces and get van schedules, exchange ETAs, and sleep windows.
Consumer weekend -
Turnover pipeline for small landlords
Small landlords wing every tenant turnover and lose weeks of rent; a checklist pipeline from notice to move-in with vendor scheduling texts.
SaaS 1 week -
Husbandry log for reptile keepers
Reptile keepers track temps, feedings, and sheds across enclosures on paper; one husbandry log with species targets flags problems early.
Consumer Mobile 1 week -
Local setup checker for onboarding developers
New hires lose day one to broken local setups; a checker CLI verifies versions, env vars and services against your repo's manifest.
Dev tool 1 week -
Sourcing cost tracking for online resellers
eBay and Poshmark resellers cannot tie thrift-haul receipts to items at tax time; log hauls, split costs across items, get per-item COGS and profit.
Micro-SaaS 1 week -
Booth rent autopay for salon owners
Salon owners chase booth renters for cash every week; automated weekly ACH rent collection with late fees and a clean ledger per stylist.
SaaS weekend -
Break alerts for web scraper selectors
Scrapers die silently when a target site redesigns; this pings your selectors on a schedule and alerts with the new DOM diff.
Dev tool 1 week -
Long-cycle service reminders for septic companies
Septic tanks need pumping every 3-5 years, far past any CRM's memory; multi-year reminder sequences bring old customers back automatically.
Micro-SaaS weekend -
Repeat job reminders for septic pumpers
Septic pumpers lose repeat jobs when 3-year reminders live in a spreadsheet; auto-send texts and rebooking links when tanks come due.
SaaS weekend -
Cut layout optimizer for hobby woodworkers
Hobby woodworkers waste expensive sheet goods on bad layouts; paste a cut list and get an optimized cutting diagram for plywood and boards.
Consumer 1 month -
Shopify order context inside Gmail support inbox
Small e-commerce teams answer support email while tab-switching to Shopify; this sidebar shows the sender's orders, tracking, and refund actions.
B2B Chrome extension 1 week -
Timestamped service proof for snow contractors
Snow contractors face slip-and-fall claims years later with no records; crews snap geo-stamped before/after photos archived into defensible logs.
Micro-SaaS Mobile 1 week -
SMS shift confirmations for staffing agencies
Staffing agencies eat no-shows that torch client trust; this texts placed workers before shifts and escalates non-confirmations so gaps get filled.
B2B 1 week -
Proof-of-service photos for snow contractors
Snow removal contractors face slip-and-fall lawsuits years later; this app logs timestamped, geotagged photos and conditions per property visit.
B2B Mobile 1 week -
Shared care log for adult siblings
Adult siblings coordinating a parent's care lose updates in group texts; a shared log for meds, appointments, doctor notes, and who is on duty.
Consumer 1 week -
Storm dispatch for snow plow contractors
Plow contractors dispatch by frantic 3am phone calls; activate a storm, push route lists to trucks, and bill per push with time-stamped proof.
SaaS 1 month -
Brand deal deliverable tracking for creators
Creators miss brand-deal deliverables buried in email threads; track every sponsorship's deliverables, deadlines, usage rights, and payments.
SaaS 1 week -
Route setting app for home climbing walls
Home climbing wall owners have no way to set, save, and share routes; photograph your spray wall and tap holds to create problems like Kilter.
Consumer Mobile 1 month -
Test clock scenarios for Stripe billing logic
Proration and trial edge cases only blow up in prod; scripted Stripe test-clock scenarios run your billing logic through a year in minutes.
Dev tool 1 month -
Row level security test suite for Supabase
One bad RLS policy leaks every user's data; write assertion suites that hammer your Supabase policies as real users on every deploy.
Dev tool 1 week -
Fill cancelled therapy slots from the waitlist
Private-practice therapists eat $100+ per late cancellation; this texts the waitlist in priority order and books the first yes into the open slot.
Micro-SaaS 1 week -
Duty rosters for youth sports team parents
Team parents wrangle snack, carpool, and jersey duty in group texts; rotating duty rosters with SMS reminders and one-tap swaps.
SaaS weekend -
Catch log tied to tide and wind
Surf anglers cross-reference tide charts, wind, and old catches from memory; one log ties every catch to conditions so patterns finally emerge.
Consumer Mobile 1 week -
Tip pooling calculator with labor law rules
Restaurant managers split tips in error-prone spreadsheets and risk wage lawsuits; this computes pools by hours and role with state-rule guardrails.
B2B weekend -
Automated aftercare texts for tattoo studios
Tattoo clients toss paper aftercare sheets and panic-DM their artist; timed aftercare texts with heal-check photo prompts handle it automatically.
Micro-SaaS 1 week -
Prepaid hour tracking for tutors
Tutors sell 10-hour packages and track balances in their heads; auto-decrement hours per session and email parents a top-up link when low.
SaaS weekend -
Trail camera photo organizer for deer hunters
Deer hunters drown in thousands of trail cam photos each fall; auto-sort by camera and time, tag bucks, and see movement patterns by stand.
Consumer 1 month -
TODO comments with owners, age and SLAs
TODO comments are where intentions go to die; this indexes them with git blame age and owners, and nags Slack when they hit an SLA.
Dev tool weekend -
Prepaid session pack tracking for personal trainers
Independent trainers lose money losing count of prepaid session packs; this decrements on check-in and auto-invoices when a pack runs dry.
Micro-SaaS 1 week -
Controlled substance log for vet clinics
Vet clinics keep DEA-required ketamine and opioid logs in paper binders; this is a digital log with running balances and discrepancy alerts.
B2B 1 week -
Security scanner for AI-generated apps
AI-generated apps ship with exposed keys and missing auth; paste a repo or URL and get a ranked security report with copy-paste fixes.
Dev tool 1 week -
Collection value tracker for vinyl heads
Record collectors have no idea what their shelves are worth; sync a Discogs collection and track value, insurance totals, and price movements.
Consumer weekend -
Gift log and thank-you note tracker
Couples lose track of who gave what across showers and the wedding; log gifts as they arrive and check off notes so nobody is missed or double-thanked.
Consumer weekend -
Outage status page for small wireless ISPs
Rural WISPs get buried in support calls during outages; this is a status page plus SMS blast tool scoped to affected towers and subscriber areas.
B2B weekend -
Coach compliance tracker for youth sports clubs
Youth sports club admins track coach background checks and SafeSport certs in spreadsheets; this tracks expirations and blocks non-compliant rosters.
B2B weekend -
Automatic monthly reports for website care plans
Freelancers selling monthly website care plans spend hours writing what-we-did reports; this pulls uptime, updates, and backups into a branded PDF.
Micro-SaaS 1 week -
Allergy action cards for sitters and schools
Parents of allergic kids re-explain epinephrine plans to every sitter; generate wallet cards, fridge sheets, and school forms from one profile.
Consumer weekend -
Session planner for backyard astrophotographers
Astrophotographers waste rare clear nights on poorly placed targets; a planner matching target visibility, moon phase, and your exact rig and site.
Consumer 1 month -
Cancellation alerts for booked-out campgrounds
Sold-out campgrounds release cancellations daily and campers miss them; watch your dates at chosen parks and get instant availability alerts.
Consumer 1 month -
Call sheets and crew confirmations for video producers
Small video production teams rebuild call sheets in Docs for every shoot; this generates them from a shoot record and collects crew confirmations.
B2B 1 week -
Seasonal site management for campgrounds
Small campgrounds manage seasonal site renewals on index cards; renewals, waitlists, and metered electric billing for seasonal campers.
SaaS 1 month -
Student endorsement tracking for flight instructors
Flight instructors track student solo endorsements and expirations in paper logbooks; this tracks every endorsement's expiry and requirement gaps.
Micro-SaaS 1 week -
QA inspections for commercial cleaning companies
Janitorial companies lose contracts over quality complaints; this runs scored walkthrough inspections with photos and sends clients the report.
B2B 1 week -
Privacy-first usage analytics for CLI tools
CLI authors ship blind with zero usage data; a privacy-first telemetry SDK and dashboard shows commands run, versions, and error rates.
Dev tool 1 week -
Permit and inspection deadline tracking for contractors
GCs let permits lapse and miss inspection windows, stalling jobs; this tracks every permit's expiry and inspections across all active projects.
Micro-SaaS 1 week -
Printable pace bands adjusted for course hills
Marathoners run even splits on hilly courses and blow up; generate a printable pace band adjusted for the actual elevation profile of the race.
Consumer weekend -
Box customization portal for CSA farms
CSA farms field endless emails about swapping kale for carrots; this lets members customize their weekly box within limits the farm sets.
B2B 1 month -
License compliance report for procurement reviews
Enterprise procurement asks for a license audit and you stall the deal; one CI run outputs a clean report and flags GPL surprises.
Dev tool weekend -
Container dispatch for roll-off dumpster rentals
Roll-off dumpster companies lose track of where containers sit; container inventory, drop and swap scheduling, and automatic overage-day billing.
SaaS 1 week -
Sold-comps stats on eBay search pages
Resellers eyeball sold listings to price items while sourcing; this overlays average, median, and sell-through rate right on the eBay sold-search page.
Micro-SaaS Chrome extension weekend -
CI that keeps docs code samples working
Docs code samples rot until users hit errors; this extracts every snippet, runs it in CI, and fails the build when examples break.
Dev tool 1 week -
Match medical bills against your EOBs
Patients pay medical bills without checking them against EOBs; upload both, match the line items, and flag charges insurance says you do not owe.
Consumer 1 month -
True profit overlay on the Etsy dashboard
Etsy sellers see revenue, not profit, and fee changes quietly eat margins; an overlay shows real per-listing profit after fees, shipping, and materials.
Micro-SaaS Chrome extension weekend -
Inspection route app for fire protection companies
Fire extinguisher service techs log inspections on paper tags and clipboards; this app scans barcodes, records service, and outputs compliance reports.
B2B Mobile 1 month -
Dues and payout ledger for fantasy leagues
Fantasy commissioners chase buy-ins all season and track payouts in DMs; a league ledger with payment links and public who-has-paid status.
Consumer weekend -
Vendor management for farmers market organizers
Farmers market managers run applications and stall maps in spreadsheets; vendor applications, insurance docs, stall assignments, and fee invoicing.
SaaS 1 month -
Stale feature flag cleanup bot
Stale feature flags rot into dead branches nobody dares touch; this finds flags at 100% rollout and opens the cleanup PR for you.
Dev tool weekend -
Remote-updated day clock for aging parents
Families of elders with memory loss field the same what-day-is-it calls; a wall tablet shows today's schedule and photos, updated remotely by family.
Consumer 1 month -
Grant deadline and report tracker for nonprofits
Small nonprofits blow grant report deadlines and jeopardize renewals; this tracks every award's deliverables with owner assignments and reminders.
B2B weekend -
Offline hive inspection logging for beekeepers
Beekeepers inspect hives wearing gloves with no cell signal and forget what they saw; a big-button offline app logs queen, mites, and stores per hive.
Micro-SaaS Mobile 1 month -
Violation tracking for self-managed HOAs
Self-managed HOA boards track violations in email threads; log them with photos, generate escalating notice letters, and track cure deadlines.
SaaS 1 week -
State-compliant hour logs for homeschool parents
Homeschool parents in reporting states reconstruct required hours and portfolios each June in a panic; quick daily logs roll up into state-ready reports.
Micro-SaaS 1 week -
Maintenance agreement billing for HVAC shops
HVAC shops sell maintenance agreements then lose track of them; recurring billing, spring and fall visit due lists, and renewal tracking.
SaaS 1 month -
Supplier price change alerts from restaurant invoices
Restaurants miss quiet supplier price creep that wrecks food cost; this OCRs delivery invoices and alerts when any item's unit price jumps.
B2B 1 month -
Utility rebilling calculator for small landlords
Landlords with shared meters split utilities by hand and get disputes; enter the bill, pick an allocation method, send itemized charges to tenants.
Micro-SaaS 1 month -
Customer skip requests that fix lawn routes
Lawn crews get skip-this-week texts at 6am and eat the drive time; customers skip via link, the route re-sequences, and billing adjusts itself.
Micro-SaaS 1 month -
Hosted license keys for indie software sellers
Selling a desktop app or plugin means building license keys from scratch; a hosted API issues, validates and revokes keys with Stripe sync.
Dev tool 1 week -
Makeup class credit tracker for tutoring centers
Tutoring centers and music schools lose money and goodwill mis-tracking missed-class makeup credits; this tracks credits, expiry, and redemptions.
B2B weekend -
Stall fees and attendance for market managers
Farmers market managers collect stall fees in cash envelopes and track vendors on clipboards; this handles invoicing, no-shows, and stall maps.
Micro-SaaS 1 week -
Funeral program and slideshow builder
Grieving families wrestle with Word templates for funeral programs at the worst possible time; build a printable program and slideshow fast.
Consumer weekend -
Treatment package balance tracker for med spas
Med spas sell 6-session packages then lose track of balances and no-shows; this tracks redemptions, expiry, and nudges clients to book remaining visits.
B2B 1 week -
Enrollment and tuition for microschools
Microschools cobble tuition onto Venmo and paper forms; applications, enrollment agreements, tuition autopay, and sibling discounts in one system.
SaaS 1 month -
Assignment and practice portal for music teachers
Music teachers lose students when parents can't see progress; weekly assignments and practice logs parents actually get emailed.
SaaS 1 week -
State-compliant digital journal for mobile notaries
Mobile notaries keep fragile paper journals that states require for years; a phone-first e-journal captures entries, signatures, and IDs compliantly.
Micro-SaaS Mobile 1 month -
Potluck signup that balances the menu
Every potluck ends up with five desserts and no mains; a signup link that balances dish categories and surfaces dietary needs up front.
Consumer weekend -
Before and after screenshots on every PR
Reviewers can't see UI changes in a diff; this shoots before/after screenshots of changed pages on every PR via your preview deploys.
Dev tool 1 month -
Turn handwritten recipe cards into a book
Grandma's handwritten recipe cards are fading in a shoebox; photograph them, get clean transcriptions alongside the originals, and print a book.
Consumer 1 month -
Reef tank water log with dosing alerts
Reef keepers juggle alkalinity, calcium, and dosing schedules in spreadsheets; log parameters in seconds and get alerts before corals suffer.
Consumer Mobile 1 week -
Referee assigning and pay for youth leagues
Youth leagues assign referees by group text and pay them late; availability, game assignments, self-claim for open games, and per-game pay tracking.
SaaS 1 month -
Gauge alerts for whitewater paddlers
Paddlers refresh USGS gauge pages hoping their run comes in; set a runnable range per river and get a text the moment levels hit the window.
Consumer weekend -
Schengen 90 in 180 day tracker
Digital nomads risk overstays doing 90/180 Schengen math on napkins; log trips once and see exactly how many days remain, with exit alerts.
Consumer weekend -
Real-world API usage stats for library maintainers
Library maintainers guess which APIs are safe to break; this scans public GitHub usage of your package and shows real call-site counts.
Dev tool 1 week -
Pesticide application records for small farms
Small farms must keep legally compliant pesticide application records but scribble them in truck cabs; log a spray in 30 seconds, keep it forever.
Micro-SaaS 1 week -
Standing order manager for wholesale bakeries
Wholesale bakeries take cafe standing orders by text and bake from memory; this manages recurring orders, daily production counts, and pack lists.
B2B 1 week -
Skill progress tracking for swim schools
Swim schools track skill levels on paper and parents churn between sessions; instructor skill checkoffs that trigger level-up emails and re-enrollment.
SaaS 1 month -
Consent forms and aftercare texts for tattoo studios
Tattoo studios shuffle paper consent forms and repeat aftercare advice; this does e-sign intake with ID capture and scheduled aftercare check-ins.
B2B weekend -
Waitlist management for private practice therapists
Private-practice therapists keep waitlists in a messy inbox; manage them by insurance, hours, and fit, with auto check-ins that keep the list warm.
SaaS 1 week -
Impound lot and lien deadline tracker for towing companies
Towing companies lose lien sale rights by missing statutory notice deadlines; this tracks each impounded vehicle's clock and generates notices.
B2B 1 week -
Restock planning for vending machine operators
Vending operators guess what each machine needs; per-machine par levels turn into restock pick lists by route, with cash counts per stop.
SaaS 1 week -
Round management for window cleaners
Window cleaners run 4- and 8-week rounds from a notebook; plan rounds by street, log jobs done, and collect by direct debit automatically.
SaaS 1 week -
Meeting cost ticker for Google Calendar
A Chrome extension that shows the real salary cost of every meeting on the invite. Viral by design — screenshots of a $3,400 status meeting share themselves.
B2B Chrome extension weekend -
QR menu with actual analytics for restaurants
QR menus are everywhere but tell owners nothing. Show restaurants which dishes get viewed, hovered, and ignored — data they've never had.
B2B 1 week -
Review-mining tool for Airbnb hosts
Paste a listing URL, get every complaint and compliment from reviews clustered into a fix-it list. Hosts obsess over ratings; give them the why.
Micro-SaaS weekend -
Waitlist sniper for gym classes
Popular gym and studio classes book out in minutes. Watch for cancellations and alert (or auto-book) the moment a spot opens.
Consumer 1 week -
Exit-interview widget for SaaS churn
A drop-in cancellation flow that asks one smart question, offers the right save (pause, discount, downgrade), and tells founders why people actually leave.
B2B 1 week -
Disposable photo wall for weddings
A QR code on every table; guests' photos appear on a live wall and the couple gets everything in one album. No app installs, event-priced.
Consumer 1 week -
Changelog writer that reads your merged PRs
Connect a repo, get a user-facing changelog drafted from merged pull requests every week. Devs hate writing changelogs; users notice when they stop.
Dev tool weekend -
Picky-eater tracker for parents
Log what your toddler actually ate in two taps, spot patterns, and get gentle re-introduction suggestions. Parents of picky eaters are desperate and underserved.
Consumer Mobile 1 month