Security & 2FA AuthenticatorKD Labs

Simple OTP

100% Offline (Zero-Network)•0.0.1 (Sắp ra mắt)

About the Application

Simple OTP is engineered on a fundamental security principle: enterprise-grade cryptographic security should feel accessible, transparent, and completely peaceful. The app operates 100% offline with zero network permissions. Master Vault Keys are guarded inside hardware enclaves (Android Keystore / iOS Keychain) encrypted via AES-256-GCM. Featuring the Bé Khóa (Lock-bot) companion mascot to make digital authentication approachable and delightful.

Key Features

100% Offline (Zero-Network Architecture): No internet permissions, 0 telemetry sent outwards

Hardware-backed Vault Key: Derived via PBKDF2 (100k iterations) & AES-256-GCM

RFC 6238 (TOTP) & RFC 4226 (HOTP) compliant with SHA-1, SHA-256, SHA-512 support

Multi-channel ingestion: Live camera QR scanner, gallery photo decode, clipboard auto-detect, manual key

Privacy Shield: System FLAG_SECURE prevents unauthorized screenshots or recording

Biometric authentication with fingerprint & Face Unlock support

Interactive companion mascots: Bé Khóa (Lock-bot), Cipher Cat, Byte Dog, Shield Bunny

Encrypted password-protected backup and restore in .simpleotp format

Open-Source under MIT: 100% transparent and independently auditable

Official App Screenshots & Banners

What's New in this Version

                • Preparing release for version 0.0.1 on Google Play
• Integrated complete trio of interactive security mascots
• Zero-Network architecture verified with 100% test coverage

Technical Specifications

Package Namecom.duybk.simpleotp

Version0.0.1 (Sắp ra mắt)

Download Size12.4 MB

OS RequirementAndroid 8.0 trở lên (API 26+) & iOS

Last UpdatedTháng 9, 2026

Privacy & Data Protection

This application guarantees zero spyware, zero network tracking, and 100% compliance with Google Play Data Safety.

Read full Privacy Policy →