Stratum icon
Stratum icon

Stratum

 16 likes

A free open-source two factor authentication app for Android. It features encrypted backups, icons, categories and a high level of customisation. It also has a Wear OS companion app.

Stratum screenshot 1
Stratum screenshot 2
+5
Stratum screenshot 3

License model

  • FreeOpen Source

Application type

Platforms

  • Android  IzzyOnDroid repo: [https://apt.izzysoft.de/fdroid/index/apk/com.stratumauth.app](https://apt.izzysoft.de/fdroid/index/apk/com.stratumauth.app)
  • Android Tablet  fdroidrepos://stratumauth.com/fdroid/repo?fingerprint=B975B325E4F39465DF1034D6BC2C11A3926F60CC07B820C51FBE1C757555F28A
  • Android Wear
  • F-Droid  [https://fdroid.link/#https://stratumauth.com/fdroid/repo?fingerprint=B975B325E4F39465DF1034D6BC2C11A3926F60CC07B820C51FBE1C757555F28A](https://fdroid.link/#https://stratumauth.com/fdroid/repo?fingerprint=B975B325E4F39465DF1034D6BC2C11A3926F60CC07B820C51FBE1C757555F28A)
5 / 5 Avg rating (8)
16likes
2comments
0news articles

Features

Suggest and vote on features

Properties

  1.  Privacy focused
  2.  Lightweight

Features

  1.  Time-based One-time Password
  2.  Two-factor Authentication
  3.  Encrypted Backup
  4.  Dark Mode
  5.  Compatible with Android Wear
  6.  Ad-free
  7.  Works Offline
  8.  Biometric Authentication
  9.  No Tracking
  10.  Multiple Account support
  11.  End-to-End Encryption
  12.  Multi-Factor Authentication (MFA)

 Tags

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Stratum information

  • Developed by

    Jamie M. Hodgson
  • Licensing

    Open Source (GPL-3.0) and Free product.
  • Written in

  • Rating

    Average rating of 5
  • Alternatives

    44 alternatives listed
  • Supported Languages

    • English
    • Chinese
    • French
    • Spanish
    • Swedish
    • German
    • Esperanto
    • Italian
    • Dutch
    • Polish
    • Portuguese
    • Russian
    • Slovene
    • Korean
    • Japanese
    • Thai
    • Ukrainian
    • Turkish
    • Finnish

AlternativeTo Categories

Security & PrivacyBackup & Sync

GitHub repository

  •  3,620 Stars
  •  215 Forks
  •  65 Open Issues
  •   Updated Apr 12, 2025 
View on GitHub

Our users have written 2 comments and reviews about Stratum, and it has gotten 16 likes

Stratum was added to AlternativeTo by Paul on Nov 26, 2021 and this page was last updated Mar 8, 2025.

Comments and Reviews

   
 Post comment/review
Top Positive Comment
undeniably_lizard
Mar 6, 2023
4

My search to find the best TOTP app has finally come to an end, as Authenticator Pro is simply the best! Despite “Pro” being in the name, it is entirely free and open source. Plus, it takes great measures to secure user data, like encrypted backups, biometric or password unlock, and tap to reveal code.

It is also dead easy to use with a customizable and material design.

K0RR
Dec 21, 2023
1

It looks great and has many import and export possibilities, I just wish it had a better name. The only thing missing for me is a browser extension like the one from 2FAS

What is Stratum?

A free open-source two factor authentication app for Android. It features encrypted backups, icons, categories and a high level of customisation. It also has a Wear OS companion app.

It supports TOTP (Time Based) and HOTP (Counter Based) authenticators using either SHA1, SHA256 or SHA512 hashing algorithms. Mobile-Otp (mOTP), Steam and Yandex are also supported.

Features:

?? Compatibility: Stratum is compatible with most providers and accounts. 💾 Backup / Restore: Backup your authenticators with strong encryption. In case you lose your or change phone, you can always gain access to your accounts. Save to cloud storage or to your device. 🌙 Dark Mode: Stratum has a beautiful material design inspired look in either light or dark themes. ?? Icons: Find your authenticators easily with recognisable brand logos and icons next to each code. 📂 Categories: Organise your authenticators into categories. 🔒 Offline with few permissions: Stratum only requires a single permission and does not require Internet access to function. 🎨 Customisation: Set icons and rename. You can also arrange your authenticators in any order you like so you can find them easily. ? Wear OS: Quickly view your authenticators directly from your watch. Please note that a connection to your Android device is required.