andOTP - OTP Authenticator

1.62K reviews
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About this app

andOTP is currently unmaintained, please check GitHub for additional details.

andOTP implements Time-based One-time Passwords (TOTP) like specified in RFC 6238 (HOTP support is currently in beta testing). Simply scan the QR code and login with the generated 6-digit code.

•  Free and Open-Source
•  Requires minimal permissions:
 •  Camera access for QR code scanning
 •  Storage access for import and export of the database
•  Encrypted storage with two backends:
 •  Android KeyStore (can cause problems, please only use if you absolutely have to)
 •  Password / PIN
•  Multiple backup options:
 •  Plain-text
 •  Password-protected
 •  OpenPGP-encrypted
•  Sleek minimalistic Material Design with three different themes:
 •  Light
 •  Dark
 •  Black (for OLED screens)
•  Great Usability
•  Compatible with Google Authenticator

To keep your account information as secure as possible andOTP only stores it in encrypted data files. There are two methods of encryption which can be used: the Android KeyStore or a Password / PIN.

The KeyStore is a system component of Android for securely storing cryptographic keys, the advantage of this approach is that the key is kept separate from the apps data and, as a bonus, can be backed by hardware cryptography (if your device supports this). However, due to that separation, backups with 3rd-party apps like Titanium Backup can not be used if this method is chosen. Such apps only backup the encrypted data files and not the encryption key, which renders them useless. In this case you will have to rely on the internal backup functions provided by andOTP!

The KeyStore is known to cause a lot of problems, so please only use it if you absolutely have to and know what you are doing. In that case please make sure to make regular backups in case something goes wrong. It is always recommended to use a password or PIN instead!

Beta testing:
If you found a bug during beta testing, please submit your feedback directly on Github ( because for some reason I don't always get notified when new beta feedback is submitted on the Google Play Store.

Open source:
This app is fully open source (licenses under the MIT license), you can check out the source on GitHub:

andOTP is a fork of the great OTP Authenticator app written by Bruno Bierbaumer, which has sadly been inactive for a while. All credit for the original version goes to Bruno. It has since been removed from Google Play, but you can still find the code of his app here:
Updated on
Jun 14, 2021

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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1.62K reviews
A Google user
November 5, 2018
Phenomenal. Absolutely amazing. I have been first a Google Authenticator user, until the license went proprietary. Then I switched to FreeOTP. After preparing to switch phones, I realized that FreeOTP doesn't backup the entries. I was able to get a backup through adb and decrypt and extract the tokens.xml, to get my secrets. Then I discovered andOTP. I successfully rescanned all my secrets into andOTP. I LOVE that I can hide entries by default. I LOVE that it supports PIN/Password locking. I LOVE that it has backups, and supports OpenPGP. Everything about this app is amazing. My only gripe would be the red text on green background, which isn't very visible for red/green color blindness. But that's not worth taking away a star. Phenomenal app.
68 people found this review helpful
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A Google user
March 7, 2020
Extremely neat and easy-to-use app which shows a "countdown bar" for when the shown codes expire. Also great 1-tab copy function and backup. But ould be really nice being able to set fingerprint to unlock. You CAN just use the phone's unlock mechanism, however, it's awkward when you got iris unlock activated to easily check if you got notifs, but you don't wanna ACCIDENTALLY unlock the app by staring at your screen with it open
42 people found this review helpful
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Jakob Nixdorf
March 8, 2020
You can already do that: Adding a simple option for fingerprint unlocking, especially in combination with the password-based encryption is still planed. But it will take a while since I don't have a lot time to work on the project currently.
GhaV jGRight
June 13, 2022
Despite the fact that this app has not been updated since 2021, it still works fine. The only thing I would ask for is use of fingerprint scanning during log in, and maybe like how Microsoft's authenticator works fingerprint scanning for password entry.
4 people found this review helpful
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