Forge: Lift Tracker

AI-powered lift tracker

Only for iPhone

Free · In‑App Purchases

iPhone

Smart progressive overload that always works — even offline. AI builds your program. Weekly check-ins adapt it. Lift more every session, never plateau. Forge is a workout tracker built around one principle: progressive overload that always works. Every set you log feeds a deterministic on-device engine that knows when to add weight, when to hold, and when to deload - automatically, every session, no AI required. Your workout works fully offline. Your data stays on your device - we don't see it. When the AI does help, it helps where it matters: building your starting program from your goals, equipment, and injuries. And every week, a quick check-in (fatigue, soreness, notes) adapts your upcoming week to how your body is actually responding. KEY FEATURES • Set-focus logging - one set at a time, large weight/rep inputs, background-safe rest timer • Deterministic progressive overload - double progression, rep progression for endurance ranges, automatic deload after 3 consecutive failures • AI program generation - onboarding asks 5 questions, generates a personalized week-by-week program • In-workout coach cards - AI explanations appear above set inputs when a weight increase is due (Pro) • Weekly check-in adaptation - AI modifies your upcoming week based on fatigue and soreness (Pro) • Progress tab - volume trends, estimated 1RMs, PR history, muscle-group heatmap, imbalance warnings • HealthKit integration - workouts written to your Apple Health on session complete; body-weight read used to scale starting weights and bodyweight-exercise volume • Streak tracking - visible chip on Home, no gamification clutter OFFLINE-FIRST Workout logging works with zero connectivity. AI is called only at three specific moments - onboarding program generation, session-start coach card pre-fetch, and weekly check-in submission - and never blocks a session. PRIVACY We don't collect your name, email, or location. Workout data stays on your device - v1.0 doesn't sync across devices. AI calls send anonymized workout snapshots to our backend; we don't sell or advertise on your data. Full details in our privacy policy. SUBSCRIPTION Forge is free to use for logging, progressive overload, streaks, and PR tracking. AI-powered features (program generation, coach cards, check-in adaptation, muscle heatmap, imbalance warnings) require Forge Pro at $9.99/month or $59.99/year. A 14-day free trial of all Pro features starts when you pick the AI Coach path during onboarding (Apple StoreKit Introductory Offer - no charge if cancelled before day 15). Manage anytime in Settings → Apple ID → Subscriptions. NOT MEDICAL ADVICE Forge is a training tool, not a medical device. AI suggestions are based on your inputs and general training principles, not on individual medical assessment. Consult a qualified healthcare professional before starting any new exercise program, especially if you have injuries or medical conditions. - Terms of Use (EULA): https://supiphat.github.io/forge-legal/terms.html Privacy Policy: https://supiphat.github.io/forge-legal/privacy.html

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Fixes and a smoother second launch. • Setup no longer gets stuck on a blank screen if you swipe the AI consent sheet away. • Closing the app right after "Calibration complete" no longer restarts setup. • Close the app mid-workout and pick up where you left off — your logged sets are kept. • Template programs now use the right starting weights for every exercise. • Your streak counts the sessions your program schedules, so rest days don't reset it. • Days are named after your program ("Upper A", "Push"), not the first exercise. • When your block ends, Forge tells you and offers a rebuild instead of looping the last week. • Swapping an exercise for a session keeps the set count and progress on the right slot. • Tap the weight or reps to type a value directly. • Both Pro plans are visible on the paywall; small fixes to rest timer, export file names and more.

The developer, Supiphat Kasetrsuwan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Health & Fitness

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
  • Supiphat Kasetrsuwan
Size
  • 8 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
  • Forge Pro Annual $59.99
  • Forge Pro Monthly $9.99
Copyright
  • © 2026 Supiphat Kasetrsuwan