Clock + Calendar combo widget for Android
About this app
Clock 31 is a Clock + Calendar combo widget for Android, inspired by (but not forked from) the cLock widget found in old versions of LineageOS.
The widget shows the current time and date, the next alarm (if any), and upcoming events for all your calendars (the colors on the left indicates the calendar to which they belong). Some useful shortcuts are also provided: tapping the clock will bring you to the clock and alarm app, tapping the calendar icon will open the calendar, tapping an event will bring you to the details of that event.
Licensed under GPL-3.0-only, by Federico Dossena.
What's New in v1.0.3
Imported from the F-Droid repository index.
Version history
Feb 12, 2023 · 0 MB · Android API 21–32 · code 5
Imported from the F-Droid repository index.
SHA-256 02f0465f6af48fffddf0c5969f3f3dc73611a3bc8d6d5753cffadc8adb51d82f
Dec 23, 2022 · 0 MB · Android API 21–32 · code 4
Imported from the F-Droid repository index.
SHA-256 c6e057020693f75841332f0af57ed8805fe69cf2cb6abfe94eae857341e9da2a
Dec 13, 2022 · 0 MB · Android API 21–32 · code 3
Imported from the F-Droid repository index.
- * Fixed possible crash during widget creation/initialization
- * Improved permissions-related code
- * Removed some unnecessary leftover code
SHA-256 a03cd57cc471d5bf04998ef8430fe53e1797ec67ece614746772fd6d34d11fb0
Will it run on your device?
73%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be com.dosse.clock31 is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 1.0.2 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Clock31 first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Clock31, and a listing is removed when the evidence for it stops holding up.
Get Clock31
Every source we list for com.dosse.clock31 is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
02f0465f6af48fffddf0c5969f3f3dc73611a3bc8d6d5753cffadc8adb51d82f
Signing certificate
a7bbe156479131d86eaa298e44f1b5f93612f66665e8ef7c604559ce3eaf2caa
Permissions Required
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.