Reminders for recurring alerts: insurance, inspections, vaccines and more
About this app
Lembra is a native, fully offline app to manage cards for recurring alerts and reminders: car and motorbike paperwork, home tasks, pet vaccinations, kids' appointments, documents, licenses and more.
Features:
* Cards with title, category, start date, optional time and location, repeat interval, number of repetitions and how many days in advance to warn you. * A local notification is fired automatically the chosen number of days before EACH occurrence, not only the last one. * Editable and deletable cards; alerts are cancelled and rescheduled on change. * Categories with filtering: Car, Motorbike, Home, Pets, Kids, Documents, Licenses and Misc. * Light/dark/system theme and configurable primary and accent colors. * Alarms survive a device reboot. * Optionally dump every occurrence as events into your device calendar.
No account, no backend and no internet access: everything is stored locally with Room.
Licensed under GPL-3.0-only, by tizzenn.
What's New in v1.13
Imported from the F-Droid repository index.
Version history
Jul 11, 2026 · 4.8 MB · Android API 26–34 · code 14
Imported from the F-Droid repository index.
SHA-256 fc3453c428c642cdf4e378b98f88f2f045f30c6a74ca273a52c8d2430191b506
Jul 5, 2026 · 4.8 MB · Android API 26–34 · code 13
Imported from the F-Droid repository index.
SHA-256 8fa36f441b06910f79085b6cd2fff2fbb22b14a9737003a8d0e3033f8540015b
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.lembra.app 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, 1.12 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Lembra 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 Lembra, and a listing is removed when the evidence for it stops holding up.
Get Lembra
Every source we list for com.lembra.app 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
fc3453c428c642cdf4e378b98f88f2f045f30c6a74ca273a52c8d2430191b506
Signing certificate
2e7304a9c03ffe47106c33af65f915ec8665fb1650a19a9b391e370f8574f12b
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.