Health, home and travel decision
Hevy Pro
A narrow, self-hosted workout tracker (logging, routines, basic social and analytics) is realistic for a competent developer to build and run, but Hevy's large community presence and polished native/watch integrations are durable advantages that are costly to reproduce.
Visit website↗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.
What a replacement has to do
- Log workouts, save routines, view progress charts, and follow other athletes.
What it still won’t have
- Polished native iOS/Android apps and App Store presence
- Apple Watch & WearOS integrations and custom watch faces
- Large pre-existing community and network activity
- Exercise video library and curated guides
- Hevy Coach trainer product features and integrations at scale
What remains hard
- Network effects
Follow and compete with other athletes to stay motivated.
- Brand trust
Loved by 15+ million athletes.
First-year cost
Keep paying
Paying is—cheaper in year one.
On cash alone, building overtakes the subscription at 3 seats.
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 minimal self-hosted workout tracker using Node.js (Express), Postgres, and React (web + PWA). Implement: user auth (email/password), CRUD for workouts and routines, follow/like/comment social actions, PR and one-rep-max computations, CSV/JSON import-export, and a responsive React UI for logging workouts. Provide REST endpoints, input validation, error handling, unit tests for backend logic, and Docker Compose for local deployment. Out of scope: native iOS/Android apps, Apple Watch/WearOS integrations, video library, and large-scale multi-tenant hosting.
How we checked
How the score was reached
- Pay verdict base20
- An open-source build was found+5
- 4 cited sources+3
- Hard moats found in the evidence-3
- Evidence score25
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 · 4
Every page the run actually retrieved.
- official productHevy - The #1 Workout Tracker & Gym Logger App
- official productProduct - Hevy - #1 Workout Tracker & Planner Gym Log App
- open sourceSnouzy/workout-cool
- open sourcewger-project/wger
Integrity checks
What held up, and what did not.
