Fitness software, built by an operator
Three finished specs (client check-in, program tracker, class booking) and the 30 prompts that fix what breaks after your first one. Plus an operator's directory of the AI and no-code tools worth your weekend.
FitTech Builder Kit · $27
Specs, a database that's already correct, security rules, every screen, and 30 fixes filed under what you say when it breaks.
Fitness App PRD Starter · free
Plus the 15-minute prompt that writes a spec for your own app idea, and a 5-day email course.
Tools directory
AI app builders
Build a client check-in or booking web app from a written spec, with Supabase wired in.
verdict › The best first tool for a non-coder. Hand it a spec, not a wish, and it stays on track much longer.
Free tier with daily credits; paid plans for more.
lovable.dev ↗Databases & backends
Postgres database, logins and row-level security for client data.
verdict › The default backend for AI-built fitness apps. Turn on row-level security or your clients can read each other.
Free tier is plenty for one gym; Pro for production.
supabase.com ↗Payments
Charge for class packs, memberships and drop-ins inside your own app.
verdict › The standard. Every AI builder knows it, so prompts for it work first time more often.
No monthly fee; per-transaction fees.
stripe.com ↗Scheduling, check-in & forms
Intake forms and waivers with signatures, logic and webhooks.
verdict › Best free form tool. Keep health questions out unless you've handled the privacy side.
Generous free plan; Pro for extras.
tally.so ↗AI code editors & agents
AI code editor that edits your whole project; reads .cursorrules for fitness context.
verdict › The step up once you own your code. Not where a first-timer should start.
Free tier; Pro subscription.
cursor.com ↗Automation
Self-hostable workflows: new booking → message, new client → onboarding.
verdict › The most power for the money if you can host it. Steeper than Zapier.
Free self-hosted; paid cloud plans.
n8n.io ↗AI app builders · AI code editors & agents · Databases & backends · No-code app platforms · Payments · Scheduling, check-in & forms · Automation · Hosting & deploy · AI assistants