A stealthy, biometric-secured notes vault disguised as a fully functional scientific calculator. Built with Modern Android Development standards (Kotlin, Jetpack Compose, Room, Hilt). 🔐📱
android kotlin security calculator privacy mvvm clean-architecture mobile-development room-database jetpack-compose hilt material3 secret-vault biometric-auth stealth-app
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Updated
Jan 22, 2026 - Kotlin