# Adaptive Theme (open-source utility app)

> Adaptive Theme is a free, open-source utility app for Android. Auto-switch dark theme & wallpapers using the ambient light sensor. It has 274 GitHub stars and is released under the GPL-3.0-only license, and you can install it from F-Droid and Google Play.

Adaptive Theme switches Android's system-wide theme between light and dark mode according to the ambient light sensor instead of relying on sunset or a fixed schedule. Use light mode in bright surroundings and dark mode in low light, with the threshold under your control. It can also switch your wallpaper to match the active theme. Features Uses the device's physical ambient light sensor Custom lux threshold and presets for indoor, outdoor, and daylight conditions Wallpaper Theme Sync for separate light and dark home and lock screen wallpapers Optional blur effect for the lock screen wallpaper Optional night lock to keep dark mode active during a chosen time period Quick Settings tile for…

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/xLexip/Adaptive-Theme |
| Platforms | Android |
| Built with | Jetpack Compose |
| GitHub stars | 274 |
| License | GPL-3.0-only (open source) |
| F-Droid | https://f-droid.org/packages/dev.lexip.hecate/ (package dev.lexip.hecate) |
| F-Droid anti-features | none flagged |
| Google Play | https://play.google.com/store/apps/details?id=dev.lexip.hecate |
| App Store | not linked |
| Website | https://lexip.dev/hecate |
| Official | no |
| Category | Utilities |
| Latest release | v2.5.1 (Sep 11, 2026) |
| Last commit | Sep 11, 2026 |

F-Droid builds its apps from source and flags anti-features: https://f-droid.org/en/docs/Anti-Features/

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