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Foilauth

Free#109 of 111 in Authenticator Apps

Foilauth: A focused open-source authenticator for Sailfish users who need local encrypted OTP storage. Ranked #109 of 111 in Authenticator Apps by our editors (3.0/10); pricing: Open source; best for sailfish users needing basic encrypted OTP storage.

3.0/10Editor score

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At a glance

Editor score
3.0 / 10
Pricing
Open source
Best for
Sailfish users needing basic encrypted OTP storage
Paid from
Free
Facts checked
22 Sep 2026

Where it wins
- Generates both TOTP and HOTP codes
- Encrypts stored secrets with configurable auto-lock
- Supports QR, otpauth, Steam, and token organization
Where it doesn't
- Focused on Sailfish OS rather than broad platform coverage
- Provides basic authentication features without AI tools
- Distributed as RPM packages through a community repository

Our verdict on Foilauth

Foilauth is an open-source mobile authenticator for individual Sailfish OS users who need locally stored one-time-password secrets. It generates both time-based TOTP and counter-based HOTP codes, with support for Steam tokens. Token setup can use QR scanning or clipboard-based otpauth URL imports, while grouping and organization tools help manage multiple authenticators.

Its strongest area is focused credential handling. Foilauth encrypts stored authenticator secrets and includes configurable auto-lock, giving the application a defined local-storage and access-control focus. Setup supports common token enrollment paths through QR codes and otpauth URLs, and the published feature set also includes clipboard-based HOTP imports. These capabilities make it suitable for users who want a compact authenticator centered on encrypted secrets rather than broader account-management features.

The main trade-off is platform scope. Foilauth is identified as a Sailfish OS application and is distributed as Sailfish OS RPM packages through the SailfishOS:Chum community repository. That narrow ecosystem fit makes it a practical choice for Sailfish users, but less suitable for anyone who needs a wider cross-platform authenticator or a broader device ecosystem. Choose Foilauth when Sailfish OS support, open-source availability, encrypted local storage, and TOTP/HOTP coverage are the priorities. Choose an alternative when verified support across multiple platforms is essential.

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

Foilauth pricing

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

See plans on sailfishos-chum.github.io

Foilauth fact sheet

Free plan	Not verified
Paid from	Free
Code type	Totp and hotp
Push approvals	Not verified
Encrypted backup	Not verified
Multi-device sync	Not verified
Team administration	Not verified
Supported platforms	Sailfish OS
Deployment	Mobile
Platforms	Android
Support	Community
Built for	Solo, Small business (editorial estimate)
Pricing	Open source
Website	sailfishos-chum.github.io
Facts checked	22 Sep 2026

Alternatives to Foilauth

See all Foilauth alternatives →

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Featured on iTechGuides

Foilauth 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