Secure Key Authenticator helps you manage two-factor authentication codes, passwords, and private notes in one local-first Android app.

Generate time-based 2FA codes, organize accounts into folders, add backup codes, and keep important private information in an encrypted vault. The app is designed for users who want a simple, offline way to manage everyday security tools without subscriptions, ads, analytics, or a server account.

Main features:

2FA Authenticator

* Generate TOTP and HOTP verification codes
* Add accounts by QR scan, image import, manual entry, or file import
* Support for standard authenticator QR formats
* Organize accounts with folders, favorites, search, and sorting
* Tap to copy codes with automatic clipboard clearing

Password Manager

* Store usernames, passwords, URLs, and secure notes
* Generate strong passwords and passphrases
* Review weak, reused, or old passwords locally
* Use system autofill support where available

Private Vault

* Save bank card details, identity records, secure notes, and recovery information
* Sensitive entries stay hidden until unlocked
* Optional biometric or PIN protection
* Auto-lock when the app is closed or inactive

Local and Offline by Design

* No account required
* No cloud sync
* No ads
* No subscriptions
* No analytics
* No push notifications
* Data is stored locally on your device

Security Controls

* App lock with biometric or PIN
* Encrypted local storage
* Screenshot protection on sensitive screens
* Optional warnings for risky device environments
* Local import and export for backups

Secure Key Authenticator is intended as a practical local security companion for managing authentication codes and private records. Always keep a safe backup of important recovery codes before changing phones or resetting your device.