Tools · Open source
Circadian Display
Mohit Tomar
Adaptive screen warmth and dimming curves for better evening comfort and sleep.
Opens the official F-Droid page
About Circadian Display
Circadian Display continuously adjusts your screen's warmth and brightness throughout the evening based on customizable curves you define. Unlike standard night light solutions with fixed on/off schedules, Circadian Display provides a smooth, gradual transition tailored to your preferences.
Features:
- Dynamic comfort curves with precise warmth and dimming levels over time
- Dual-engine modes: Native (system-level, Android 10+ with ADB setup) and Overlay (software-based, works on all devices)
- Background scheduler for automatic, hands-free operation
- Privacy-first: completely offline, tracker-free, no data collection
- Open source (Apache 2.0)
What's new in 1.0.4
- Status bar clock, battery and Wi-Fi icons are no longer invisible on devices using the system dark mode - Removed the dark flash when the app opens on devices using the system dark mode - The navigation bar now matches the app's background instead of drawing a dark strip across the bottom
How to install Circadian Display
- Tap Download — the app's official page on F-Droid opens.
- Install it with the F-Droid app (recommended, for automatic updates), or use the download button on that page.
- If Android asks, allow the F-Droid app or your browser to install apps, then tap Install.
- Open Circadian Display from your app drawer.
More tools apps
Google TranslateTools
Files by GoogleTools
Google LensTools
SHAREitTools
ZArchiverTools
Custom RR: ROMs & RecoveryToolsFilesTools
CAPod - Companion for AirPodsTools
F-DroidToolsSleepGuard - dead man's switchTools
SD Maid 2/SE - System CleanerTools
F-Droid Privileged ExtensionTools
OONI ProbeTools
ConnectBotToolsGoodtime: Pomodoro TimerTools
LibreTorrentTools
ownCloudTools