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About Osmium
Osmium is a privacy-first, fully offline authenticator for two-factor codes (TOTP/HOTP): codes are generated on-device and work without any network connection.
• Codes are computed entirely on-device — no account, no sign-up, and no telemetry.
• No connections at start-up. Osmium goes online only when you ask it to: the automatic update check is off by default, and the Terms of Use / Privacy Policy are downloaded from osmium.im only when you open them.
• Secrets are encrypted with a non-exportable key in the Android Keystore before they are written to disk.
• TOTP and HOTP: 6/7/8 digits, SHA-1/SHA-256/SHA-512; Steam Guard codes supported.
• Organize accounts with tags and search.
• Import from other apps: Google Authenticator (QR migration), Aegis, 2FAS and other common backup formats.
• Encrypted export & restore to a local file or your own WebDAV server; encrypted quick transfer between two devices on the same Wi-Fi.
• Modern Material 3 design with light/dark themes and Material You colours.
• Fully open source (GPL-3.0-or-later); release builds are reproducible — anyone can verify that the published APK matches the source code.
No ads, no trackers, no analytics.
Website: [link removed]
Source code: [link removed]
• Codes are computed entirely on-device — no account, no sign-up, and no telemetry.
• No connections at start-up. Osmium goes online only when you ask it to: the automatic update check is off by default, and the Terms of Use / Privacy Policy are downloaded from osmium.im only when you open them.
• Secrets are encrypted with a non-exportable key in the Android Keystore before they are written to disk.
• TOTP and HOTP: 6/7/8 digits, SHA-1/SHA-256/SHA-512; Steam Guard codes supported.
• Organize accounts with tags and search.
• Import from other apps: Google Authenticator (QR migration), Aegis, 2FAS and other common backup formats.
• Encrypted export & restore to a local file or your own WebDAV server; encrypted quick transfer between two devices on the same Wi-Fi.
• Modern Material 3 design with light/dark themes and Material You colours.
• Fully open source (GPL-3.0-or-later); release builds are reproducible — anyone can verify that the published APK matches the source code.
No ads, no trackers, no analytics.
Website: [link removed]
Source code: [link removed]
| Release info | Update on Nov 01, 2026 |
|---|---|
| Release notes | Osmium v2.6.2 ???? / Release date: 2026-11-01 ??????????????(80%-200% ????),????????? + ????????????????????? ?????? ??:????,????? o ?? -> ?? -> ????:?????????????? Osmium ???????,???????;??????????????? o ?? 80%-200%,? 5% ??,?????,?????????? ? / ?? / ? / ?? ?????? o ????????????:???????????????????;100% ????????? o ?????????:?????,??????????????,?????? o ????????????,????????????? o ?????? 2.0 ?(?? x ??),?? PIN ??(?? 72dp ??)??????????? ??:???? o ?? -> ?? -> ????:???????? 0-100% ?????,????????????? o ???????:???????????,?????????,????????????(??????????????????)? o ?????????,????????????????;???????????(10-20ms)? o ?????????:?????(????????)? PIN ????? ??:??/???????? o ????????????:TopAppBar ????????????,??????? statusBarsPadding(),????????????????????????????????,?????????????????????? o ???/???????????????????:?????????????,????????????????????????? o ??????????????:??????????? 16dp,??????? o ???PIN ????????????:???????????????????????,???/???????????????,?????? o ?????(????????????WebDAV HTTP ?????????????????????):??????????????????? o ????:?? 96dp ??????? 96dp,?? + ??? + ???????;??????????????? o ??????:????????,8 ??(HOTP / 8 ? TOTP)????????????? o ?????????????????????? ?? o ?? 7 ?????,11 ?????? o ?????????? SDK??????? English release notes This release adds a text-size setting with a free 80%-200% slider, and fixes several layouts where long translations were cut off with no way to scroll to the rest. New: text size you can set yourself o Settings -> Appearance -> Text size has a master switch at the top. Off restores Osmium's own default text size and locks the slider; only with it on can you drag the slider. Off by default. o An 80%-200% slider in 5% steps, applied when you let go, no restart. Small / Default / Large / Largest remain as quick presets. o The multiplier sits on top of the system font scale: users who already enlarged text system-wide can go further, and 100% follows the system exactly. o A live preview at the top of the page: dragging... |
| Listing data | F-Droid |
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