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Stratum

Free#84 of 111 in Authenticator Apps

Stratum: A capable Android authenticator with encrypted backups, offline access and Wear OS support. Ranked #84 of 111 in Authenticator Apps by our editors (3.0/10); pricing: Free plan; best for android users wanting open-source backup and Wear OS.

3.0/10Editor score

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At a glance

Editor score
3.0 / 10
Pricing
Free plan
Best for
Android users wanting open-source backup and Wear OS
Free plan
Yes
Paid from
Free
Facts checked
22 Sep 2026

Where it wins
- Free and open source with TOTP and HOTP code generation
- Encrypted backup and restore with biometric and password protection
- Wear OS companion app plus WebDAV and DAVx5 integrations
Where it doesn't
- Android-only support limits coverage across other platforms
- No cloud-service syncing for broader device synchronization
- Wear OS synchronization depends on a connected Android device

Our verdict on Stratum

Stratum is a free, open-source authenticator app for Android with a companion app for Wear OS. It generates TOTP and HOTP codes and also supports mOTP, Steam and Yandex formats. The app is designed for privacy-conscious individuals who want local control of authentication data without a required online account or cloud service. Offline operation, biometric and password protection, encrypted backups, and imports from supported authenticator apps make it suited to users moving from another authenticator or managing codes locally.

Its pricing is straightforward: Stratum is free, with no paid tiers described. The feature set includes encrypted backup and restore, account import and export, authenticator categories, custom icons, ordering, and display customization. WebDAV and DAVx5 integrations support the documented backup and synchronization options, while the app can operate without internet access. The published feature set gives users practical control over organization, protection, and portability without introducing a subscription structure.

Platform fit is Stratum's clearest trade-off. The Android app and Wear OS companion cover users in that ecosystem, and the documented multi-device synchronization is between those two components. Stratum does not provide cloud-service syncing, so it is not aimed at people seeking broad cross-platform account synchronization. Choose it for open-source code generation, encrypted local backups, offline access, and Wear OS support on Android. Choose an alternative if access across other platforms or cloud-based synchronization is central to your setup.

Your product? Our editors can test Stratum in depth and publish a review, labelled as paid · from $149/mo →

Stratum pricing

Plans Free planFree Free to use — no paid tier required for the core job.

See plans on stratumauth.com

Stratum fact sheet

Free plan	Yes
Paid from	Free
Code type	Totp and hotp
Push approvals	Not verified
Encrypted backup	Yes
Multi-device sync	Yes
Team administration	Not verified
Supported platforms	android
Deployment	Mobile
Platforms	Android
Support	Community, Docs
Built for	Solo, Small business (editorial estimate)
Integrations	2 integrations: WebDAV, DAVx5
Pricing	Free plan
Website	stratumauth.com
Facts checked	22 Sep 2026

Stratum integrations

Stratum lists 2 integrations on its own site.

WebDAV
DAVx5

Alternatives to Stratum

See all Stratum alternatives →

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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Stratum for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

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Featured on iTechGuides

Stratum is listed in our Authenticator Apps directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update