Twilight 14.21
Twilight automatically filters blue light from your Android screen based on sunset and sunrise times, helping preserve your natural sleep cycle without any manual adjustments.
How Blue Light Affects Your Sleep
The science is straightforward - blue light wavelengths suppress melatonin production, the hormone that tells your body it's time to sleep.
By applying a warm red filter that gradually intensifies as evening progresses, Twilight reduces this disruption while keeping your screen perfectly usable for browsing, reading, or watching videos with VLC for Android or Kodi.
Customizable Filter Controls
Unlike built-in night mode features found on some devices, Twilight offers granular control over filter intensity and color temperature.
You can fine-tune exactly how warm the display becomes, set custom bedtime profiles with stronger filtering during late hours, and whitelist specific apps like Hypic Photo Editor or CapCut when you need accurate color representation for editing.
Automatic Sunset Synchronization
The app uses your location to calculate local sunset and sunrise times, then applies smooth transitions throughout the evening rather than jarring sudden changes.
This creates a natural viewing experience that adapts to your timezone automatically - particularly useful if you travel frequently or live in regions with dramatic seasonal daylight shifts.
For users who spend hours reading ebooks or documents on their tablets, Twilight pairs excellently with dedicated reading apps.
Check out our guide on how to transform your tablet into an ebook reader for additional tips on reducing eye strain during extended reading sessions.
Privacy and Permissions
Twilight requires minimal permissions - screen overlay access for applying the filter and location access for sunset calculations. The app respects your privacy by not collecting personal data or tracking usage patterns.
Getting Started with Twilight
Getting started takes seconds: install Twilight, grant the necessary permissions, and let it run automatically in the background.
Start with a lower filter intensity and gradually increase warmth as your eyes adjust. Enable the bedtime profile for extra dimming during your final hour before sleep, and whitelist color-sensitive apps as needed.
Whether you're binge-watching content through MX Player, listening to music with AIMP for Android, or simply browsing late at night, Twilight works silently in the background to protect your eyes and preserve your sleep quality.
