Voice daily logs for construction supers

The idea

Daily reports are contractually required on most commercial jobs and universally hated. Supers finish a ten-hour day and then thumb-type a report into a clunky form, or skip it — until a delay claim lands and the missing logs cost the company real money. Dictation as a category has strong proven demand; people pay $8-15/mo just for generic speech-to-text, twice validated by the crowd.

But raw transcription is not a daily log. The wedge is the artifact: talk for two minutes at the truck and get a structured report with weather auto-stamped from the site’s coordinates, manpower broken out by trade, and delay entries written in language that holds up in a dispute. Procore does this as part of a suite costing thousands a year; solo GCs and small subs have nothing in between, and $25/mo per super fills that gap.

Who pays

The buyer is the small GC owner or self-employed superintendent at $25/mo, or a company plan at $99/mo for five supers. The pitch is protection: one documented weather delay pays for a decade of subscription. Distribute through construction subreddits and Facebook groups, contractor podcasts, and content targeting daily report template searches, which have durable volume.

MVP scope

• Voice recording with a spoken-prompt checklist and Whisper transcription
• Claude-structured daily log in a fixed template with delay-claim language
• Automatic weather stamping from site coordinates via weather API
• One-screen review/edit, PDF generation, and email distribution list
• Report history calendar per project
• Skip for v1: photo attachments, Procore/PlanGrid integrations, offline mode, multi-language crews

Build DailyLog, a mobile app that turns a superintendent's two-minute voice memo into a formatted construction daily report. Stack: React Native with Expo, Whisper API for transcription, Claude API for report generation, OpenWeatherMap API for site weather, Supabase for auth and storage.

Core flow: super opens their project, taps record, and talks — who was on site, what got done, deliveries, inspections, problems. Whisper transcribes; Claude maps the rambling audio into a fixed daily log structure: date, weather (auto-pulled for the site's coordinates at three points during the workday, not spoken), manpower by trade with headcounts, work completed by area, materials delivered, equipment on site, delays and their causes, safety observations, and visitor log. The super reviews on a single edit screen, taps Approve, and a PDF emails itself to a configured distribution list.

Screens: project list, record screen with a prompt checklist of what to mention, report review/edit, report history calendar, project settings (address, distribution emails, logo).

Non-obvious details: when the super mentions a delay, have Claude append neutral contractual language noting cause, duration, and affected activities — these logs become evidence in delay claims, and that phrasing is the retention hook. Auto-fill weather from the API even when unmentioned, since disputes hinge on documented conditions.

Pricing: $25/mo per super, company plan $99/mo for 5, 14-day trial, Stripe via web.