TrackHands

Stop biting your nails with TrackHands - a macOS app that helps you break the nail-biting habit by detecting when your hands are near your mouth.

Download from Mac App Store ($4.99)

Features

• Real-time hand and face detection using Vision framework
• Unobtrusive menu bar app
• Warning overlay when hands are detected near mouth
• Camera preview with detection visualization
• Adjustable detection frequency
• Configurable camera resolution
• Screenshot capture of detected incidents
• Privacy-focused - no data collection

Requirements

• macOS 14.2 or later
• Built-in camera or compatible webcam
• Camera permissions enabled

How It Works

TrackHands runs in your menu bar and uses your Mac's camera to:

1. Detect your face and mouth position
2. Track your hand and finger positions
3. Show a warning overlay when fingers are detected near your mouth
4. Capture a screenshot of the incident to help build awareness

Privacy

• All processing is done locally on your device
• No data is collected or transmitted
• Camera access is required but footage never leaves your Mac

Settings

• Adjust check frequency (seconds between detections)
• Configure camera resolution (Low/Medium/High)
• View detection overlay in preview window

Support

If you're having issues with finger detection:

1. Try quitting and reopening the app
2. If problems persist, contact help@trackhands.com

License

Contribute and install it on your MacOS! Or just install it from the AppStore :)

Credits

Developed by Joaquin Ossandon (@cacoos on X)