Tools directory
Every tool here was picked by someone who ran fitness studios for ten years and builds with AI, not code. Each gets a use case, a pricing note and an honest verdict.
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 ↗AI app builders
Prototype a full-stack app in the browser and deploy it in one click.
verdict › Fast and capable. Burns tokens quickly when you re-prompt in circles, so arrive with a spec.
Free tier; paid plans by token usage.
bolt.new ↗AI app builders
Its Agent builds, runs and hosts the app in one place, database included.
verdict › Good all-in-one if you never want to think about hosting. Watch usage costs.
Free starter; paid plans for Agent usage and always-on hosting.
replit.com ↗AI app builders
Generate polished screens and full Next.js apps from a prompt.
verdict › Produces the best-looking screens of the lot. Strongest when paired with a real backend.
Free tier with monthly credits; paid plans.
v0.app ↗AI app builders
All-in-one AI builder with built-in database, auth and hosting.
verdict › Very low setup. You own less of the plumbing, which is fine for an internal studio tool.
Free tier; paid plans.
base44.com ↗AI app builders
Google's AI workspace for prototyping and shipping apps on Firebase.
verdict › Solid if you are already in Google's world. Less hand-holding than Lovable.
Free to start; Firebase usage billed separately.
firebase.studio ↗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 ↗AI code editors & agents
Terminal agent that builds and fixes apps from your folder; reads CLAUDE.md.
verdict › The most capable agent for a long build if you can open a terminal. Feed it a spec.
Included with paid Claude plans or API usage.
www.anthropic.com/claude-code ↗AI code editors & agents
AI editor with an agent that plans and makes multi-file changes.
verdict › A credible Cursor alternative. Pick one and stick with it.
Free tier; paid plans.
windsurf.com ↗AI code editors & agents
AI pair programmer and coding agent inside VS Code and GitHub.
verdict › Great for developers; less useful when you can't read the code it suggests.
Free tier; paid plans.
github.com/features/copilot ↗AI code editors & agents
Coding agent that works on your repository in the cloud or terminal.
verdict › Capable for well-specified tasks. Same rule: spec first.
Included with paid ChatGPT plans.
openai.com/codex/ ↗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 ↗Databases & backends
Google's database, auth and hosting for web and mobile apps.
verdict › Fine choice, but most AI builders and kits assume Supabase. Swim with the current.
Generous free Spark plan; pay-as-you-go Blaze.
firebase.google.com ↗Databases & backends
Serverless Postgres with branching, for when you want just a database.
verdict › Clean Postgres. You'll add your own logins and rules, so more work than Supabase.
Free tier; usage-based paid plans.
neon.tech ↗Databases & backends
Spreadsheet-database for class rosters, leads and member lists.
verdict › Perfect back office for a small team. Not a client-facing database at scale.
Free tier; paid per seat.
www.airtable.com ↗No-code app platforms
Turn a Google Sheet into a mobile-friendly staff or client app.
verdict › Fastest path to an internal coach app. Hits limits once logic gets clever.
Free tier; paid plans by users and updates.
www.glideapps.com ↗No-code app platforms
Client portals and member directories on top of Airtable or a database.
verdict › Good for a member portal by Friday. Customisation has a ceiling.
Free tier; paid plans.
www.softr.io ↗No-code app platforms
Visual builder for full web apps with workflows and a database.
verdict › Powerful, but you learn Bubble instead of describing your app. Slower start than AI builders.
Free to build; paid to launch.
bubble.io ↗No-code app platforms
Visual builder for native iOS and Android apps.
verdict › Choose it only if a native app-store app truly matters. A web app on the phone is usually enough.
Free tier; paid plans to export and publish.
www.flutterflow.io ↗No-code app platforms
Drag-and-drop native mobile apps with a built-in database.
verdict › Approachable for simple apps. Most studios outgrow it.
Free tier; paid to publish.
www.adalo.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 ↗Payments
Front-desk card reader plus online payments and invoices.
verdict › Best when you also take cards in person at the desk.
Free plan; per-transaction fees.
squareup.com ↗Payments
Online checkout clients already trust.
verdict › Useful as a second option at checkout, rarely as the only one.
Per-transaction fees; no monthly fee.
www.paypal.com/business ↗Payments
Merchant of record for selling digital programs and memberships online.
verdict › Handles sales tax for you when you sell programs internationally.
Percentage plus fixed fee per sale.
www.lemonsqueezy.com ↗Scheduling, check-in & forms
Open-source booking pages for PT sessions and consults; has an API.
verdict › The best scheduler to build on top of because it is open and has a real API.
Free for individuals; paid team plans.
cal.com ↗Scheduling, check-in & forms
Booking links for intro sessions and consultations.
verdict › Fine for 1:1 sessions. Not a class timetable.
Free tier; paid plans.
calendly.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 ↗Scheduling, check-in & forms
Conversational intake and onboarding questionnaires.
verdict › Nicer experience, pricier than Tally. Pick on taste.
Free tier; paid plans.
www.typeform.com ↗Scheduling, check-in & forms
Forms with e-signatures, payments and PDF waivers.
verdict › The most features per dollar for waivers. Interface is busier.
Free tier; paid plans.
www.jotform.com ↗Scheduling, check-in & forms
Quick free feedback and sign-up forms into a Sheet.
verdict › Fine for a quick survey. Not for anything a client signs.
Free with a Google account.
www.google.com/forms/about/ ↗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 ↗Automation
Connect thousands of apps: form submitted → add to roster → send email.
verdict › Easiest automation tool there is. Costs climb with volume.
Free tier; paid by tasks.
zapier.com ↗Automation
Visual multi-step automations at lower cost than Zapier.
verdict › Better value than Zapier once workflows get longer.
Free tier; paid by operations.
www.make.com ↗Hosting & deploy
Deploy a Next.js app to a real URL in minutes.
verdict › Where most AI-built web apps end up. Set your environment variables before you panic.
Free Hobby plan; Pro for teams and commercial use.
vercel.com ↗Hosting & deploy
Host and deploy web apps and static sites from a repo.
verdict › Equivalent to Vercel for most studio apps.
Free tier; paid plans.
www.netlify.com ↗Hosting & deploy
Save every version of your app's code; most deploys start here.
verdict › Connect your builder to it on day one. It's your undo button.
Free for individuals.
github.com ↗AI assistants
Write specs, debug error messages, draft client copy.
verdict › Great thinking partner. Give it your spec, or it will invent a generic gym.
Free tier; paid plans.
chatgpt.com ↗AI assistants
Long-document specs, reviewing code and explaining errors plainly.
verdict › Best for working through a long spec without losing the thread.
Free tier; paid plans.
claude.ai ↗AI assistants
Assistant inside Google Workspace for docs, sheets and research.
verdict › Handy if your studio runs on Google Workspace.
Free tier; paid plans.
gemini.google.com ↗AI assistants
Assistant with live web and X search for research and drafting.
verdict › Strong for current tool research and quick drafts.
Free tier; paid plans.
grok.com ↗For tool makers
Put your product in front of gym and studio owners who are actively building their own software. Featured spots are pinned at the top of a category and clearly marked. $49/week · $99/month.
Secure checkout by Stripe. Monthly cancels anytime. Questions? founder@fittechfounder.com
Pricing notes are summaries; check each official site for current plans. Listings are editorial and unpaid unless marked Featured.