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 (E2EE)
- Token data are encrypted using XChaCha20-Poly1305
- Secure decryption methods:
- Password (derived with scrypt)
- Face ID (via Secure Enclave)
- Automatic backup & sync to Apple iCloud (optional)
- Export
- Plain text
- Encrypted
- HTML with QR codes for easy scanning (Coming soon)
- Built natively with Swift
This project is licensed under the GNU Affero General Public License v3.0 - see the LICENSE file for details.