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Red Moon

Name: Red Moon
Author: LibreShift

LibreShift

Screen filter for night time phone use

System & tools
FOSS
Free
No ads
No tracking

Android only

Get Red Moon

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What are these stores? F-Droid

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:

Developer: LibreShift
Source code: github.com/LibreShift/red-moon
Added to AppCosmos: 10 October 2026
License: GPL-3.0-or-later