
4OTP
7.7#17 in authenticator appsFrom $36 a yearFree planAndroidiOSmacOSWindows
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| Fact | 4OTP | Duo Mobile |
|---|---|---|
| Code type | totp | totp |
| Encrypted backup | Yes | Yes |
| Free plan | Yes | Yes |
| Supported platforms | Windows,macOS,iOS,Android | iOS,Android |
4OTP suits people who want a TOTP authenticator across supported desktop and mobile platforms, including offline use. Sync may suit users who need their code list across multiple devices.
It suits individuals who need app-based login approvals or passcodes, as well as organizations integrating authentication with business systems. End users needing setup or troubleshooting help should contact their Duo administrator.