ChattyFit AI Personal Trainer

Weight Loss & Muscle Building

Only for iPhone

Free · In‑App Purchases

iPhone

Run planned workouts with live guidance, edit exercises in a tap, update your profile directly, and enjoy faster videos and smoother Health sync. Build muscle, lose weight, and hit your goals with ChattyFit. Your smart AI Personal Trainer builds your perfect gym or home workout plan instantly. Plan your week from Home with a 7-day calendar, schedule workouts by day and time, and keep momentum with clear planned, completed, and missed sessions. Never walk into the gym confused again. Whether you have a full gym setup, use kettlebells at home, or just bodyweight, ChattyFit creates a routine you can actually stick to. WHAT CHATTYFIT HELPS YOU DO • Build Muscle & Lose Weight: Proven programs for real gains and fat loss. • Stop Guessing: Know exactly what workout to do every single day. • Master Your Form: Learn any exercise with videos, images, and AI guidance. • Train Anywhere: Plans for the gym, home, hotel, or outdoors. • Stay Consistent: Plan your week from Home, schedule workouts, track history, and keep your streak going. YOUR AI COACH, ON DEMAND • Chat with an intelligent AI trainer about goals, progress, or form. • Ask "What should I do today?" and get a complete, safe session instantly. • Adjust workouts on the fly: Tired? Sore? Short on time? ChattyFit adapts instantly. • Get substitutions for exercises you can't do (e.g. swap Barbell for Dumbbells). PERSONALIZED TRAINING PLANS • Structured plans for Hypertrophy (Size), Strength, Weight Loss, and General Fitness. • Adapts to YOUR equipment: Full gym, dumbbells, kettlebells, bands, or no equipment. • Smartly manages training volume, sets, and reps for progressive overload. • Takes injuries and health conditions into account for safe training. HOME PLANNING, LOGGING & TRACKING • Use Home as your command center for your 7-day calendar, planned workouts, and progress. • Schedule workouts with explicit day and time selection from Home, workout setup, or workout details. • Start, track, and finish planned workouts with live per-set guidance. Mark sets as you complete them and save a full workout log. • Quick-edit any exercise: change sets, reps, weight, or rest time in a tap — no chat needed, no starting over. • Record your sets, reps, weight, and RPE (effort), view your full history, and instantly repeat your best past workouts. APPLE WATCH & APPLE HEALTH • Leave your phone in your locker. Follow your plan directly on your wrist. • Scheduled workouts stay aligned on Apple Watch when available. • Import Apple Health workouts, reduce duplicate history, and sync with Activity Rings. BUILT FOR REAL PEOPLE • Beginner-friendly, but powerful enough for experienced lifters. • Flexible plans that adjust when life happens (travel, stress, missed days). • Encouraging, judgment-free coaching available 24/7. CHATTYFIT PRO Upgrade to ChattyFit Pro to unlock unlimited workouts, full AI coaching access, and advanced tools. The free version includes limited daily workouts so you can try before you buy. PRIVACY Your fitness data lives on your device and in your iCloud. We never sell your data. Terms of Use: https://chatty.fit/terms-of-service Privacy Policy: https://chatty.fit/privacy-policy

  • 5.0
    out of 5
    4 Ratings

Now you can run through your planned workouts with live guidance — start a session, mark sets as you complete them, track elapsed time, and finish with a saved workout log. Your session stays active even if you switch screens, so you can jump right back in without losing progress. Edit any exercise in a tap. Swipe to adjust sets, reps, weight, or rest time instantly — no chat, no rebuilding from scratch. Your profile is also editable directly: update gender, age, height, weight, health conditions, experience level, or activity level from a single screen, with optional auto‑update from Apple Health for height and weight. Exercise videos load significantly faster and match the correct exercise every time. Apple Health sync has been rebuilt to run more smoothly — large imports no longer block the app, and your health metrics stay current without slowing you down.

The developer, 51code Co., Ltd., 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:

    • User Content
    • Identifiers
    • Usage Data
    • Diagnostics

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

The developer indicated that this app supports the following accessibility features. Learn More

  • Supported Features

    • Dark Interface

Seller
  • 51code Co., Ltd.
Size
  • 72.3 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English and 7 more
  • English, Arabic, French, Japanese, Russian, Simplified Chinese, Spanish, Traditional Chinese
Age Rating
16+
  • 16+
  • Contains
    Unrestricted Web Access
    Health or Wellness Topics
In-App Purchases
Yes
  • ChattyFit Pro $12.99
  • ChattyFit Pro $6.99
  • ChattyFit Pro $99.99
  • Lifetime $124.99
  • ChattyFit Pro $249.99
Copyright
  • © 2026 51 code Co., Ltd.