Blink the terminal when receiving a call, SMS or an application notification
About this app
Flash Alert turns your camera flash into a powerful visual indicator whenever you receive a call, SMS/MMS, or notification from another app (WhatsApp, social media, etc.).
Key Features: - Customizable flash alerts for calls, messages, and apps. - Contact filtering: enable the flash only for your contacts. - Battery-saver mode: smart deactivation if the phone is face down or if the screen is already on. - Night mode and "Do Not Disturb" override options. - Ambient noise detection (for compatible Android versions).
A lightweight app, privacy-friendly, and completely ad-free.
Licensed under GPL-3.0-only.
What's New in v2.7.0
Imported from the F-Droid repository index.
- - Implemented quiet hours to mute flashes and reminders during a specific time range (#48).
- - Added data backup and restore rules configuration.
- - Various improvements and bug fixes for Android 13+ (conversation detection, debug simulator, translations) (#61).
Version history
Jun 30, 2026 · 2.9 MB · Android API 24–36 · code 23384372
Imported from the F-Droid repository index.
- - Implemented quiet hours to mute flashes and reminders during a specific time range (#48).
- - Added data backup and restore rules configuration.
- - Various improvements and bug fixes for Android 13+ (conversation detection, debug simulator, translations) (#61).
SHA-256 49972e4ce7e5b5463b8de9246be66a940b8d3ec88f001ba33bbfbc97c4cd2a47
Jun 22, 2026 · 2.9 MB · Android API 24–36 · code 23384371
Imported from the F-Droid repository index.
- - Fixed a startup and notification crash on Android 9 devices (#60).
- - Fixed English language fallback on multi-locale devices and updated translations (#59).
SHA-256 6d3f432bd2b731c2418121934266ee9d8e886ec4b211a45e2b9a4016b3c0d887
Jun 11, 2026 · 2.9 MB · Android API 24–36 · code 23384370
Imported from the F-Droid repository index.
- - Flash is now optional for tablets (#50).
- - Ongoing notifications (GPS, weather) are ignored (#56).
- - App list: selected at top (#54), active highlighted (#55).
- - Added Battery Guard (#47) and on-demand logs (#49).
- - Removed Noise Detector (#46).
- - Added vibe (#52) and sound profiles support (#53) for reminders.
SHA-256 2f70a85e8a7729bf4a9406338eb90493fad193903d6b67b1c92b45f6b906b197
Will it run on your device?
78%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
- Aligned with the latest Android target SDK expectations.
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 fr.jnda.android.flashalert 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, 2.6.6 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Flash Alert (Calls & SMS) 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 Flash Alert (Calls & SMS), and a listing is removed when the evidence for it stops holding up.
Get Flash Alert (Calls & SMS)
Every source we list for fr.jnda.android.flashalert 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
49972e4ce7e5b5463b8de9246be66a940b8d3ec88f001ba33bbfbc97c4cd2a47
Signing certificate
c299eb213ccd7dd454fd6fc2369570fcd35e24fe2da8df3ec2891400402a9a83
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.