When comparing Google Authenticator vs Protectimus, the Slant community recommends Protectimus for most people. In the question“What are the best TOTP / 2-factor authentication apps for Android?” Protectimus is ranked 2nd while Google Authenticator is ranked 4th. The most important reason people chose Protectimus is:
Protectimus solutions are available in two forms: as a Cloud Service or as a Platform (the client installs 2FA solution on his own servers).
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Pros
Pro Simple and straightforward
All you do after installing is log in with your Google account, and then you can add almost any account (that supports 2-factor authentication of any kind) quickly.
Pro Works offline
The app requires an internet connection to set up, but once that's done, you can disconnect from wifi entirely and it will still work.
Pro Storage efficient
Uses less than 20 mbs.
Pro The first app of this kind
Pro Available in two forms
Protectimus solutions are available in two forms: as a Cloud Service or as a Platform (the client installs 2FA solution on his own servers).
Pro Quick integration with basic programming languages
Flexible API allows quick integration with basic programming languages such as Java, Python, PHP, etc.
Pro Software and Hardware Tokens
Supports both hardware and software mobile multi-token
Pro Convenient monitoring and management tools
Pro Biometric authnetication
Protectimus iOS and Android 2FA apps offer the convenience of fingerprint scanning and Face ID.
Pro Transfer of tokens to a new phone
You can easily transfer of tokens to a new phone in iOS and Android 2FA apps.
Pro Cloud backup
Encrypted cloud backup in iOS and Android 2FA apps
Cons
Con Too basic
If you have over 10 TOTP secrets, it gets really complex to track them as there are no folders or categories or labels or images
Con A bit rustic
Con High price for 'business' version
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