App ideas that make money.
Every idea here is anchored to a real company reportedly doing five to seven figures of monthly revenue with a similar model — plus the niche angle a solo builder can take, and an honest read on how replicable it is.18 ideas, each with a copy-paste build prompt.
// 18 ideas
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Piracy detection for course creators
Course creators lose sales to pirated copies on Telegram and forum dumps; automated scans find leaks and generate DMCA takedowns in one click.
Micro-SaaS 1 month -
Resume builder for federal job applications
USAJobs rejects normal resumes for missing hours, GS grades, and formats; a builder that outputs compliant federal resumes from a guided intake.
Consumer 1 week -
Certification-aware scheduling for aquatic centers
Aquatic centers juggle lifeguard shifts against expiring CPR and rescue certs; scheduling that blocks uncertified staff and forecasts recert gaps.
B2B 1 month -
Sermon recordings into social clips for churches
Churches sit on hours of sermon video nobody repurposes; upload a service and get captioned vertical clips of the strongest moments, ready to post.
Micro-SaaS 1 month -
Operations software for sober living homes
Sober living operators track drug tests, bed fees, and house rules on paper; one system for resident logs, test records, rent, and state audit exports.
B2B 1 month -
Flash design storefronts for tattoo artists
Tattoo artists sell flash designs and collect booking deposits through DMs and spreadsheets; a storefront built for flash drops, deposits, and booking.
Micro-SaaS 1 week -
Daily astrology readings for couples
Astrology fans read solo horoscopes but date in pairs; a couples app with daily synastry readings, mood check-ins, and conversation prompts.
Consumer Mobile 1 month -
Sales attribution for creators selling digital products
Creators selling courses can't tell which platform actually drives sales; link tracking plus Stripe and Gumroad webhooks show revenue per channel and post.
Micro-SaaS 1 week -
Competitor monitoring for small DTC brands
Small DTC brands find out about competitor price cuts from customers; daily monitoring of rival prices, restocks, launches, and ad copy changes.
Micro-SaaS 1 week -
PII redaction proxy for LLM API calls
Teams in healthcare and legal can't send raw client text to LLM APIs; a drop-in proxy strips PII before the call and restores it in the response.
Dev tool 1 month -
AI missed-call textback for service pros
Home service pros lose jobs every time a call rings out; an AI texts back missed calls instantly, qualifies the job, and books the estimate.
Micro-SaaS 1 month -
Guest booking pipeline for podcast pitching
Guest booking means scraping podcast lists and cold emails in spreadsheets; find shows by niche, personalize pitches, and track bookings in one pipeline.
Micro-SaaS 1 month -
Posture habit coach with streaks
Desk workers know their posture is wrecked but never fix it; a mobile coach with hourly micro-corrections, streaks, and progress photos.
Consumer Mobile 1 month -
Social scheduler built for real estate listings
Agents rebuild the same listing posts for every platform by hand; paste an MLS link and get a scheduled week of listing, open house, and sold posts.
Micro-SaaS 1 month -
Realistic take-home practice for data candidates
Data candidates bomb take-homes they never got to practice; realistic warehouse datasets with timed SQL and dbt challenges and automated feedback.
Consumer 1 month -
Print-on-demand spirit wear stores for teams
Team parents run spirit wear orders through paper forms and Venmo; print-on-demand team stores with size tracking and automatic fundraiser payouts.
Micro-SaaS 1 month -
UGC ad scripts for TikTok Shop sellers
TikTok Shop sellers burn cash testing ad creative blind; paste a product link and get hook-tested UGC scripts, shot lists, and caption variants.
Micro-SaaS weekend -
Tax ID validation API for SaaS billing
SaaS billing teams hand-check EU VAT and UK company numbers at signup; one API validates tax IDs, applies reverse-charge logic, and logs proof.
Dev tool 1 week