Train heavy.
Own every byte.

• No account
• No cloud
• No network
• 100% on-device

Features

Everything on the device

Built for the working set, not the cloud. Forge runs offline, end to end.

• LOCAL

  Yours, on your device

  Fully on-device. No account, no cloud sync, no backend. Your programs, sets and history live on your phone and nowhere else.

• JSON

  Portable JSON programs

  Programs are plain JSON. Author them, import by file or paste, and share them with a partner. No backend, deduped by ID.

• e1RM

  Honest progress

  Personal records ranked by Epley-estimated 1RM, so any weight × rep combo competes fairly. A sliding 5-session average keeps progress current.

• SETS

  Every set type

  Normal, warm-up, drop set, AMRAP, timed, to-failure. Warm-ups and drop sets stay out of your PR figures.

• REST

  Rest timer that works

  Per-exercise rest from your program, with on-device notifications when rest ends. No cloud push. Nudge it ±15s on the fly.

• PREFILL

  Smart weight prefill

  Suggests your last top set, then a rolling average, then the program weight — in that order, so the bar is loaded before you ask.

On the floor

Built for the set in front of you

One huge number, hairline rules, one accent. Keep your training organized, offline, and yours.

• 

  Today

• 

  Live session

• 

  Import

Portable programs

Your program is just JSON

Forge programs are plain JSON. Author them, import by file or paste, and share them with a training partner. No backend, no lock-in — re-imports dedupe by ID so your library stays clean.

{
  "id": "ppl-001",
  "name": "Push / Pull / Legs",
  "days": [
    {
      "name": "Push",
      "exercises": [
        { "lift": "Bench Press", "sets": 5, "reps": 5 },
        { "lift": "Incline DB",  "sets": 4, "reps": 8 }
      ]
    }
  ]
}

Comparison

Forge vs the typical cloud tracker

See how Forge’s on-device behavior compares with a typical subscription app.

The facts

Forge, in plain terms

• Forge stores 100% of your workout data on your device. Zero bytes of training data are sent to a server.

• Forge has no account system and no sign-up. You download the app and start training immediately.

• Forge works fully offline. It makes no network calls to function — no cloud sync and no backend.

• Forge is free to download. There is no subscription and no in-app purchase.

• Forge runs on iOS and Android.

• Your programs are portable JSON files you own, and can export, import or share at any time.

• On iOS, Forge reads heart rate, energy and distance from Apple Health during a workout and writes completed workouts back to Apple Health. HealthKit data is processed on-device and is never used for advertising.

• Forge is optimised to run entirely on-device, with no centralised server in the loop.

FAQ

Questions