Health, home and travel decision
Hero Fit
A capable technical user can build a lightweight replacement (web-first with shared DB and leaderboards) in about a week; the product shows no durable moats in the supplied pages so self-building is realistic.
Visit website↗Built by Marc Lou, who ships 32 products in this index
Not priced
No pricing page we fetched carried a figure, so there is nothing to compare against. The build side is still real.
$100one-off34 h to build
$0/mo6 h/mo upkeep
No published price to break even against.
Open-source builds that already do this
Every project below is open source and already does this job today. Fork one, self-host it, or take the parts you need - the build prompt further down assumes an empty file, and this is the shortcut past that. Licences differ; check the one on each card before you ship. All Hero Fit alternatives, with the arithmetic →
What a replacement has to do
- Log workouts -> award XP -> level avatars -> update leaderboards
What it still won’t have
- Native app store presence and related UX polish unless you build native clients
- Any community, brand, or existing user base and social graphs
- The original app's unrevealed implementation details and polish from a dedicated team
What remains hard
- Product polish and ongoing maintenance
First-year cost
No published price
Hero Fit does not publish a price we could read, so there is nothing to compare against. What building costs is below.
Money you would actually spend
Time you would spend
—
What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a single-tenant fitness gamification web app using React (Vite) for the frontend, Node.js + Express for the API, and Postgres (hosted on Supabase) for data. Core features in scope: user signup/login (email+password), workout logging CRUD, XP calculation rules and avatar leveling, per-league leaderboards, and a responsive web UI that works on mobile browsers. Out of scope: native iOS/Android apps, payment processing, and third‑party social integrations. Include input validation, error handling, server and client tests (unit + basic integration), database migrations, and deployment scripts for a small VPS or Supabase. Provide README with run, build, and migration steps.
How we checked
How the score was reached
- Build verdict base78
- An open-source build was found+5
- 6 cited sources+3
- Evidence score86
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.
How scoring works →Cited sources · 6
Every page the run actually retrieved.
- official productHeroFit home
- official productHeroFit home
- official productHeroFit home
- official productHeroFit home
- open sourcewger-project/wger
- open sourceSnouzy/workout-cool
Integrity checks
What held up, and what did not.
