Health, home and travel decision

FitSaver

A small web replacement is realistic for one developer (scheduling, import, timers, storage), but reproducing the native iOS experience (App Store distribution, in-app purchases, share-extension, and any proprietary import/recognition polish) is not covered by this replacement.

View on the App Store
You pay

$3.99/mo

$48/yr

Read off the official pricing page.

You’d pay instead

$100one-off36 h to build

$10/mo3 h/mo upkeep

On cash alone, building overtakes the subscription at 5 seats.

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 FitSaver alternatives, with the arithmetic →

What a replacement has to do

  • Allow a user to paste a social video URL, extract video metadata and thumbnail, convert it into an exercise entry (name, sets, reps, rest), store it in a personal workout collection, and run a workout session with timers and completion tracking.

What it still won’t have

  • Native iOS app and App Store distribution (share-extension, native UX/notifications)
  • In‑app purchase billing handled by Apple
  • Polished, iterative mobile UX and ongoing App Store updates
  • Any proprietary workout-recognition or import-speed optimizations the app uses

What remains hard

  • Product polish and ongoing maintenance
Read the build prompt

First-year cost

Keep paying

Paying is—cheaper in year one.

On cash alone, building overtakes the subscription at 5 seats.

Paid seatsseats

Money you would actually spend

Keep paying
—

Subscription price × seats × 12

Build it
—

AI build —APIs + hosting —

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

Not run yet
Build a single-tenant web app (Node.js + Express backend, Postgres, React frontend) that accepts Instagram/TikTok/Facebook video URLs, fetches oEmbed/thumbnail/title, lets users convert a video into an exercise (name, sets, reps, rest), save workouts into collections, schedule workouts, and run a workout session with per-exercise timers and completion logging. Include email/password auth, a simple feature-flagged 'premium' subscription mode (no payment gateway integration required), input validation, error handling, and unit/integration tests. Out of scope: native iOS app, App Store in-app purchases, AI-based automated movement recognition, and large-scale multi-tenant billing.
How we checked2 sources · 3/3 runs agreed · evidence score 65

How the score was reached

  • Partly verdict base52
  • An open-source build was found+5
  • 2 cited sources+1
  • Price verified on pricing page+3
  • 3/3 assessment runs agreed+4
  • Evidence score65

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 · 2

Every page the run actually retrieved.

Integrity checks

What held up, and what did not.

✓ Price read off the page✓ 3 independent runs, one answer✓ Citations limited to fetched pages! 1 moat recorded