Twilight: Blue light filter v12.11
APK · 6.5 MB · version code 459 · Android 4.1+ · uploaded Oct 17, 2021
- Same certificate as v13.4, which matches Google Play Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v13.4, uploaded Oct 28, 2024 — about 3 years after this one.
- Size: this file is 6.5 MB; the latest is 7.2 MB (698.4 KB larger).
- The latest version asks for 1 more permission: Internal broadcast protection (app-defined).
File information
- Version
- v12.11 (459)
- Uploaded
- Oct 17, 2021
- Size
- 6.5 MB
- Requires
- Android 4.1+ (API 16)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- 1c65c9bf2ca2a0fbb4f0016d72ea6e4f
- Signing certificate (SHA-1)
- 00:A0:E5:3C:9A:3F:5D:14:DA:5E:69:8F:F4:20:E4:A7:77:6E:A4:B1
- Signed by
- CN=Petr Nalevka, OU=Urbandroid, O=Urbandroid, L=Prague, ST=Czech Republic, C=CZ
- File name
- com-urbandroid-lux-459-59558329-1c65c9bf2ca2a0fbb4f0016d72ea6e4f.apk
- Package
- com.urbandroid.lux
- Downloads (all versions)
- 5M+
- Age rating
- PEGI 3 · Everyone
What's new in v12.11
- Material YOU color shades on surfaces
Permissions (8)
This version requests 8 permissions, 4 of them sensitive.
- Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
- Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
- Package usage stats Sensitive android.permission.PACKAGE_USAGE_STATS
- Write settings Sensitive android.permission.WRITE_SETTINGS
- Full network access android.permission.INTERNET
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Certificate issued to “Urbandroid” This is the certificate of the Google Play version.
- Same certificate as v13.4, which matches Google Play v13.4
Store checks
- Developer signature under review Mar 8, 2025
- Uploaded by “catappult” Platinum tier · 1,377 followers · uploading since 2018
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself.
How to install Twilight: Blue light filter on Android 4.1+
You'll need about 12.9 MB of free space.
- Download the APK — tap Download APK above (6.5 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-urbandroid-lux-459-59558329-1c65c9bf2ca2a0fbb4f0016d72ea6e4f.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 1c65c9bf2ca2a0fbb4f0016d72ea6e4f. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Twilight: Blue light filter — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 4.1+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.