Sentinel is an elegant OTP Authenticator app for both iOS and MacOS. It relies only on the Apple's iCloud Keychain to share data across devices.
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Mac
- iPhone
- iPad
- Apple Watch




Authi is described as 'Modern two-factor authentication app with cloud sync that values privacy and security' and is a Authenticator in the security & privacy category. There are more than 25 alternatives to Authi for a variety of platforms, including iPhone, iPad, Android, Android Tablet and Mac apps. The best Authi alternative is Bitwarden, which is both free and Open Source. Other great apps like Authi are Proton Authenticator, Aegis Authenticator, Ente Auth and Proton Pass.
Sentinel is an elegant OTP Authenticator app for both iOS and MacOS. It relies only on the Apple's iCloud Keychain to share data across devices.




Authenticator generates secure 2 step verification tokens on your device. It help’s you protect your accounts even more.




Local-first TOTP authenticator with AES-256-GCM encryption, Passkey migration guidance, and browser auto-fill. Never stores passwords.



Lock Down Keys is a zero-knowledge, end-to-end encrypted password manager built specifically for teams. Using AES-256-GCM encryption that runs entirely in the browser, your credentials are never exposed to the server — not even to us.
