Screen filter for night time phone use
About this app
Blue light may suppress the production of melatonin, the sleep hormone. Red Moon filters out blue light and dims your screen below the normal minimum, so you can use your phone comfortably at night.
Features:
- Schedule Red Moon to run from sunset to sunrise, or at custom times. - Use the default color profiles, or set custom color, intensity, and dim levels. - Automatically pause in apps secured against overlays, or those you choose. - Quickly start, stop, and switch profiles via notification, tile (Android 7.0+), or widget.
Permissions:
- Modify system settings: To automatically lower the screen brightness when the filter is on - Approximate location (network-based): To determine the sunrise and sunset at your location. This will only be used when you configure Red Moon to automatically start at night. - Draw over other apps: To change the color and brightness of the screen in all apps - Run at startup: To restore the previous filter state at startup
Licensed under GPL-3.0-or-later, by LibreShift.
What's New in v4.0.0
Imported from the F-Droid repository index.
- ### Added
- - Root Mode BETA (@notjuliee). BETA means it is not tested on many devices. Make sure you can reboot your phone without looking at the screen, just in case.
- - Initial/incomplete support for Android 12 (@AdamNiederer).
- - Start/stop times can be set to sunset/sunrise individually
- - Settings screen with all non-profile preferences
- - Hebrew translation (@Shopimisrel)
Version history
Aug 23, 2022 · 6.4 MB · Android API 14–32 · code 39
Imported from the F-Droid repository index.
- ### Added
- - Root Mode BETA (@notjuliee). BETA means it is not tested on many devices. Make sure you can reboot your phone without looking at the screen, just in case.
- - Initial/incomplete support for Android 12 (@AdamNiederer).
- - Start/stop times can be set to sunset/sunrise individually
- - Settings screen with all non-profile preferences
- - Hebrew translation (@Shopimisrel)
SHA-256 c207ebf2533d50f13ba909c7a320be0e655154a91530efebc8f7dc5c27d5b52d
Mar 12, 2020 · 4.8 MB · Android API 14–29 · code 38
Imported from the F-Droid repository index.
SHA-256 c14f22e7a71c86759e781569095e45d30e8f5c86b984e6eba5db31419ad7be7e
Feb 5, 2019 · 4.3 MB · Android API 14–25 · code 37
Imported from the F-Droid repository index.
SHA-256 b344c783ac67882db036cfc34bcfa6b67155780ff4a3e41c7e363ab11b446619
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.jmstudios.redmoon 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, 3.5.0 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Red Moon 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 Moon, and a listing is removed when the evidence for it stops holding up.
Get Red Moon
Every source we list for com.jmstudios.redmoon 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
c207ebf2533d50f13ba909c7a320be0e655154a91530efebc8f7dc5c27d5b52d
Signing certificate
668506f398af7cefccab8c21c2f1409a9d0051cd2d9d4ab322196b67ee5b3447
Permissions Required
What each permission lets Red Moon 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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