Overview:

The Anti-Theft Alarm App is a security application designed to protect smartphones from unauthorized movement or theft. Once activated, the app sounds a loud alarm if the device is moved, unplugged from charging, or if someone tries to unlock it without permission. It acts as a digital guard for your phone, especially useful in public places, libraries, or while traveling.

Key Features:

• Motion Detection Alarm
  Triggers a loud alarm if the phone is moved even slightly from its position (via accelerometer).

• Charging Unplug Alert
  Sounds an alarm if the charger is removed while the alarm is active.

• PIN/Pattern/Face Lock to Deactivate Alarm
  Only the user can disable the alarm using a secure authentication method.

• Intruder Capture
  Takes a photo with the front camera if someone tries to access the phone or disable the alarm without permission.

• Location Tracking (Optional)
  Sends the location of the phone to a pre-saved email or contact when theft is suspected.

• Pocket Alarm Mode
  Detects if the phone is removed from your pocket and alerts immediately.

• Email/SMS Alert
  Sends a silent notification to your registered email/contact with location and photo in case of tampering.

• ????️ Custom Alarm Sounds
  Choose or upload custom alarm sounds that can’t be silenced easily.

• ⏲️ Delay Timer
  Allows a short countdown (e.g., 5 seconds) to cancel the alarm after activation.

Technology Stack:

• Frontend (App UI):
  HTML, CSS, Bootstrap, JavaScript (or hybrid UI with React Native)

• Backend (Optional – for cloud features):
  Node.js / PHP / Java – to store user profiles, intruder logs, and backup settings

• Database:

  • Local: SQLite for offline use (e.g., storing PINs, logs, settings)

  • Remote (optional): MySQL or MongoDB for cloud sync

• Device APIs / Native Integration:

  • Motion detection using Accelerometer Sensor API

  • Camera API for photo capture

  • AlarmManager and MediaPlayer (Android Java) for triggering alarms

  • Location API for GPS tracking

  • Biometric API for fingerprint/face unlock (optional)