4OTP vs Chronos Authenticator
| 4OTP | Chronos Authenticator | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | $3/mo | Free |
| Open source | No | No |
| Platforms | Android, iOS, macOS, Windows | iOS |
| Free plan | Yes | Yes |
| Code type | totp | totp and hotp |
| Encrypted backup | Yes | Yes |
| Multi-device sync | Yes | Yes |
| Supported platforms | Windows, macOS, iOS, Android | iOS (iPhone) |
Both are listed in Best Authenticator Apps. On Samsung Mobile US Press, 4OTP scores higher on our published basis.