WARNING: Android O does no allow the app to cover your notifications any more. The filter intensity is smoothly adjusted to the sun cycle based on your local sunset and sunrise times.Īre you using your smart phone or tablet in the late evening? Twilight may be a solution for you! It filters the flux of blue light emitted by your phone or tablet after sunset and protects your eyes with a soft and pleasant red filter. Overview: The Twilight app makes your device screen adapt to the time of the day. Twilight Blue light filter for better sleep v12.12 build 461