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Spix - Privacy Fitness Tracker

Privacy-first offline fitness tracker with AI rep counter and gamification
Spix is your elegant, privacy-first fitness companion that works 100% offline.

PRIVACY & PHILOSOPHY
Because your health data belongs to YOU, Spix was designed to be completely transparent:
• 100% Local & Offline: Works without internet. Your data stays on your device.
• Secure Camera: Used only for real-time movement detection in Rep Counter. No images are saved or sent.
• Accelerometer Alternative: Privacy-conscious? Use sensor-only mode to count reps without the camera.
• Optional Social Features: Social features are completely optional. You stay in control.
• Complete Deletion: One-click account deletion removes all your data instantly.
• No Data Selling: Never. This is a passion project, not a commercial product.

MAIN FEATURES

Dashboard & Tracking
• Today Screen: Synthetic view with weekly progress ring and calendar
• Complete Tracking: 4 dedicated modes (Home Workout, Running, Meals, Measurements)
• History: Full journal with filters and quick deletion
• Health Connect (Android): Smart automatic import of your workouts from other apps

Intelligent Rep Counter
Put down your phone and let AI work for you:
• Detection: Analysis via Camera (local Pose Detection) or Accelerometer
• Exercises: Support for Push-ups, Squats, Sit-ups, Jumping Jacks
• Feedback: Smooth animations and visual coaching

Tools & Gamification
• Workout Generator: Create custom workouts (Duration, Focus, Intensity)
• Streak System: Maintain your streak to unlock visual rewards
• Badges: 10+ trophies to unlock (From "First Step" to "Legend")
• Statistics: Interactive charts to visualize your progress (Weight, Activity)

TECH STACK
Built with React Native, Expo SDK 54, TypeScript, and local-first architecture using Zustand + MMKV for blazing-fast offline performance.

OPEN SOURCE
Spix is open source under AGPL-3.0 license. Contributions welcome!
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Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

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