Chronos is an open-source two-factor authentication (2FA) app for iOS, developed natively in SwiftUI. It aims to provide robust security and reliable backup features, supporting both time-based (TOTP) and counter-based (HOTP) authentication methods.

• End-to-end encrypted
  • Only encrypted token data, using XChaCha20-Poly1305, is stored on the device and in iCloud
• Backup & Sync (optional)
  • Effortlessly backup and sync your data with iCloud
• Export
  • Easily export your tokens for backup or transfer
  • Encrypted/unencrypted zip archive containing:
    • JSON
    • HTML with QR codes for scanning and printable for offline storage
• Import
  • 2FAS Authenticator
  • Aegis
  • Ente Authenticator
  • Raivo
  • Google Authenticator
  • LastPass Authenticator
• Anonymous
  • No telemetry
  • No app account required
• Built natively with Swift

This project is licensed under the GNU Affero General Public License v3.0 - see the LICENSE file for details.