Show a red screen
About this app
Shows a bright red screen for use as an ad-hoc emergency light or as a penalty card. If triggered from outside, it turns on the screen and raises atop of the lock screen. The colour can be overridden with an intent parameter (see README on Github).
Licensed under MIT, by Vitaly Shukela.
What's New in v1.2
Imported from the F-Droid repository index.
Version history
Aug 21, 2025 · 0 MB · Android API 16–34 · code 3
Imported from the F-Droid repository index.
SHA-256 70e9b8490e5303210b93c7505e05f6b04724f20a426f5ac20c5d677b9147d085
Oct 23, 2015 · 0 MB · Android API 3–3 · code 2
Imported from the F-Droid repository index.
SHA-256 5d1131f6c1b93c6bee9731d1b08d60b82e1162e809c2a8595981660a64a0cbbd
Oct 20, 2015 · 0 MB · Android API 3–3 · code 1
Imported from the F-Droid repository index.
SHA-256 02386bb83983d8ca8a1e9d7972f169d9ec4723fd99758a93c6aeb587f4537006
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 org.vi_server.red_screen 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, 1.1 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Red Screen 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 Red Screen, and a listing is removed when the evidence for it stops holding up.
Get Red Screen
Every source we list for org.vi_server.red_screen 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
70e9b8490e5303210b93c7505e05f6b04724f20a426f5ac20c5d677b9147d085
Signing certificate
b9a9bdf27b4ab9c43a0c25d012ff7a3065703d64d45be5ecde378e76491cf100
Permissions Required
What each permission lets Red Screen do. A highlighted one is worth a second look — not necessarily wrong, just worth asking whether this app needs it.
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.
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