OTP Auth 4+

2-Factor Auth for Pros

Roland Moers

    • 4.6 • 407 Ratings
    • Free
    • Offers In-App Purchases


OTP Auth adds support for two-factor authentication to your iPhone and iPad. It can be used with Dropbox, Facebook, GitHub, Google Mail and many more. Make your accounts safe again!

- Ads free
- Encrypted iCloud Sync
- Siri Support
- Apple Watch support
- Notification Center widget
- Safari extension for pasting passwords into websites
- Secure application using Face ID/Touch ID (or password)
- Create encrypted backups of all accounts
- Import/Export encrypted accounts using AirDrop, iCloud, Dropbox, Mail, ...
- Works offline

All data stored by OTP Auth is stored using strong AES-256 encryption. This applies for all data. In particular, for both locally stored data as well as data stored in the iCloud Drive (when iCloud Sync is enabled). The password for those files never leaves your device such that noone but you can read your data.

OTP Auth does not collect information about you or send them anywhere. You won't be asked to allow access to your contacts or your location. And most important: OTP Auth does not connect to the internet and will not send your accounts to someone else! (Unless you enable iCloud sync where an AES-256 encrypted copy of your accounts is stored in your iCloud Drive. The password for that copy will never leave your phone.)

Follow me on Twitter: @otpauth

What’s New

Version 2.17.5

This app has been updated by Apple to display the Apple Watch app icon.

* Support for iOS 15

OTP Auth includes an In-App Purchase for you to support me. If you find OTP Auth useful, please consider buying this In-App Purchase. Also please take the time to rate OTP Auth on the App Store. I would appreciate it! If you have found a bug or have any feedback for me, you can contact me at via Twitter (@otpauth) or via http://cooperrs.de/otpauth.html.

Ratings and Reviews

4.6 out of 5
407 Ratings

407 Ratings

cutelilbubbles ,

Great Authenticator App

Wayyyy better than Google Authenticator, that’s for sure. I’ve been using this for a while and have never encountered a single problem with it, so I keep using it and have no real reason to try any other 2FA apps because this one does everything it’s supposed to do and does it well. If you also enjoy the app, I highly recommend either donating to the developer (via in-app purchase) or leaving a 5-star rating and review! I’m pretty picky with 2FA apps usually, so it really says a lot that I can’t think of a single negative thing to say about OTP Auth. If you’re in need of an authenticator app for whatever reason, or if you’re unsatisfied with the one(s) you’re currently using, definitely give this one a try. It’s simple, easy to use, and user-friendly while also being robust (it has more options than most other similar apps but is also somehow super easy and quick to figure out).

Thank you, developer(s), for creating this app! And for not charging a million bucks just to use it! 🙃😅😋


Perfect way to secure your online logins

After having tried about a half-dozen similar apps, stumbled upon this simple authenticator that works great. I like the ability of adding an entry one one of my iOS devices, and have it sync to all my other iOS devices. Another nice feature is that I can sort my entries, and add categories (folders) to put them in, so I can have a folder for home (personal) sites, another for work ones, and yet another one for rarely-used sites, etc. It is capable also of allowing me to change the icon of each entry with an icon of my choosing, and I can rename the name of each entry, as well as the email address associated with each entry. As for support, the author was quick to reply to my requests for help on a couple of occasions (when I had issues due to my own stupidity, I might add). The icing-on-the-cake of this app, is that I can also see all of my entries on my Apple Watch, with the press of an icon on my watch face. Well-worth the cost of the Pro version of this app!

BrandoCalrizzian ,

Hands down my favorite OTP app

I tried Microsoft Authenticator and Google’s but there was always something missing. I wanted dark mode but also a good watch app. I couldn’t get MS’s watch app to work at all. This app is perfect. Clean looking, super functional. Copying passwords from my watch to my phone is one tap, and the icon looks clean and not-gaudy when I add it to my watch complications. It even syncs with the cloud! When I wiped and set my phone up as new all my accounts were there waiting! I was dreading having to recover them one by one. Highly recommended.

Update 7/21: There seems to be an issue with the Watch app where the watch will no longer format codes or adjust the text size larger. I’ve deleted the app, reinstalled, even set my phone and watch up as new (for other reasons) and it still won’t adjust the formatting and text size on the watch. Please fix!

App Privacy

The developer, Roland Moers, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

More By This Developer

You Might Also Like