HoldOn – Real-Time Android Anti-Theft Alarm App

HoldOn is a real-time Android anti-theft security app built to safeguard smartphones against pickpocketing, unauthorized movement, and charger disconnection events.

📱 Google Play Store: Download on Play Store
💻 GitHub Repository: github.com/imgurujeet/Hold-on

🛠️ Architecture & Tech Stack#

Language & UI: Kotlin, Jetpack Compose, Material Design
Android Core: Android SDK, Foreground Services, Sensor APIs, Broadcast Receivers
Architecture: Modular MVVM (Detection, Security Engine, Alert System, Authentication, UI)
Security & Persistence: Biometric Authentication (Fingerprint / PIN), Shared Preferences

🌟 Key Highlights#

Real-Time Theft Detection: Detects charger unplug events and motion-based pickpocket patterns, triggering instant alarm sirens.
Persistent Background Monitoring: Uses Android Sensor APIs and Foreground Services for reliable, power-efficient background monitoring even when the screen is locked.
Biometric & PIN Dismissal: Alarms cannot be dismissed or silenced without biometric fingerprint verification or secure PIN authentication.
Real-World Validated: 100+ downloads on Google Play with a 14-day testing validation cycle.

imgurujeet

Hold-on

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