VibeCheck - Smart Tap Detector

🔍 VibeCheck - Smart Tap Detector

**Just tap, get the result!**

VibeCheck is an innovative app that turns your phone into a universal measuring tool. Simply place your phone against an object, tap lightly, and the app will analyze the vibrations to estimate the object's contents/condition.

**🎯 15+ Measurement Types:**
• 3kg LPG Cylinder - Remaining gas (0-3kg)
• Mineral Water Bottle - Fullness
• Guitar String - String tension
• Ceramic/Plate - Fine crack detection
• Watermelon - Fruit ripeness
• Wall - Hollow space detection
• Gas Tank - Remaining gas estimation
• Avocado - Ripeness
• Tire - Air pressure
• Egg - Fresh vs. Rotten
• Ice - Ice thickness
• Pipe - Leak detection
• Mattress - Density level
• Drum - Membrane Tightness
• Banana - Ripeness

**✨ App Benefits:**
✅ **100% Free** - No hidden fees
✅ **Offline** - Works without internet
✅ **No Additional Sensors** - Use only your phone's accelerometer
✅ **Accuracy ~65-90%** - After calibration
✅ **Data Saved** - Calibrate only once
✅ **Smart Banner** - Ads are not annoying

**📖 How to Use:**
1. Select the measurement type
2. Perform calibration (required once) - place your phone against the object under reference conditions
3. Press "Start Measurement"
4. Tap the object 3-5 times with a consistent rhythm
5. View the measurement results!

**🔬 How Does It Work?**
Every object has a different vibration frequency depending on its mass and density. VibeCheck uses your phone's accelerometer to record vibrations when an object is tapped, then analyzes the frequency to estimate the contents/condition of the object.

**📊 Accuracy Level per Measurement:**
• Egg (Fresh/Rotten): 90% ⭐
• Guitar String: 90% ⭐
• Water Bottle: 85%
• Avocado: 85%
• Drum: 85%
• LPG Cylinder: 80%
• Watermelon: 80%
• Tire: 80%
• Banana: 80%
• Ceramic Tile: 75%
• Gas Tank: 75%
• Mattress: 75%
• Wall: 70%
• Ice Thickness: 70%
• Leaking Pipe: 65%

**💡 Tips for Accurate Results:**
✓ Calibrate under reference conditions (empty/full)
✓ Hold the phone firmly against the surface
✓ Tap it with Hard object (spoon/coin)
✓ Perform 3-5 taps with a consistent rhythm
✓ Avoid noise during measurement

**🔧 Other Features:**
• Automatic calibration data storage
• Calibration reset button
• Share the app with friends
• Rate the app on the Play Store
• Debug mode for advanced users

**📱 App Permissions:**
• Accelerometer (to detect vibration)
• Vibration (feedback when tapping)
• Internet (for ads - optional, does not affect the main function)

**⚠️ Note:**
This app provides highly accurate estimates, but is not a medical/professional measuring tool. Results may be affected by phone position, tapping force, and environmental conditions.