ChattyFit AI Personal Trainer

Weight Loss & Muscle Building

Only for iPhone

Free · In‑App Purchases

iPhone

Build muscle, lose weight, and hit your goals with ChattyFit. Your smart AI Personal Trainer builds your perfect gym or home workout plan instantly. Never walk into the gym confused again. Whether you have a pure 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: Simple logging, history tracking, and Apple Watch integration. 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. NEW: WORKOUT LOGGING & TRACKING • Turn AI sessions into trackable logs in one tap. • Record your sets, reps, weight, and RPE (effort). • View your entire Workout History and track your consistency streaks. • Instantly repeat your best past workouts. NEW: APPLE WATCH INTEGRATION • Leave your phone in your locker. Follow your plan directly on your wrist. • Log sets and reps effortlessly while you train. • Syncs automatically with Apple Health and 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
    2 Ratings

This release makes it much easier to run, adapt, and track your training — especially with Apple Watch. New: Apple Watch Workouts - Send AI-designed workouts from ChattyFit straight to Apple Watch. - Preview sessions on iPhone, then follow them on your wrist. - Schedule workouts for specific times on Apple Watch and manage them from the app. - Workouts completed on Apple Watch are tracked in the Apple Fitness and Health apps, including stats and rings. New: Exercise Structure, Replace & Reorder - Workouts are now organized into warm-up, main work, and cool-down sections so every session feels more intentional. - Quickly swap any exercise with an AI-suggested alternative using swipe-to-replace, avoiding repeats while staying aligned with your goals and limitations. - Drag and drop exercises within sections to reorder your session exactly how you want it. New: Clear Exercise Goals & Watch Alerts - Every exercise now includes a clear goal — like target weight, reps, distance, time, or effort — so you always know what you’re working toward. - These targets are sent to Apple Watch, giving you on-wrist guidance and alerts that help you stay on pace and hit your goals without checking your phone. New: Chat History & Smart Titles (Apple Intelligence) - Past chats now live in a dedicated Chat History screen, making it easier to browse, reopen, and manage previous conversations from one place. - On supported devices running iOS 26 with Apple Intelligence, conversations automatically get short AI-generated titles so you can quickly spot the right chat at a glance Improved: UI & Training Plan Experience - Refined workout detail, logging, settings and history screens for faster reading and easier actions. - Clearer training plan cards with phase, frequency, and progress context surfaced up front. - Smoother navigation from home to your plan, workouts, and chat-based coaching. We’ve also made performance improvements and fixed a few bugs to keep ChattyFit feeling fast, stable, and ready whenever you are.

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
    • 57.5 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
  • Age Rating
    16+
    • 16+
    • Contains
      Unrestricted Web Access
      Health or Wellness Topics
  • In-App Purchases
    Yes
    • ChattyFit Pro $12.99
    • ChattyFit Pro $6.99
    • Lifetime $124.99
    • ChattyFit Pro $249.99
    • ChattyFit Pro $99.99
  • Copyright
    • © 2026 51 code Co., Ltd.