Apps similar to JBlueCut - Screen filter include Solace. It's paid, but Red Moon and Twilight are free. Other options are Night Shift: Blue Light Filter. In total there are four Color Temperature Tools like JBlueCut - Screen filter for Android, Chrome OS and Mac.
Automatically changes Mac appearance using real-time weather, sunlight, and time data for light and dark modes, dynamic wallpapers, and color temperature, with on-device privacy, menu bar access, no subscriptions, and no analytics for seamless daily comfort.
United Kingdom
The app is free on F-Droid and on GitHub but you can buy it on the Google Play Store to support the developer.
The app filters the blue spectrum on your phone or tablet after sunset and protects your eyes with a red filter. The filter intensity is smoothly adjusted to the sun cycle based on your local sunset and sunrise times.
Czechia
EU
Do you use your mobile phone after sunset? Do you use your phone within three hours of your bed time? If yes, then your device might be taking your sleep away. Bluelight from your mobile screens sends a signal to brain to wake up, and makes it difficult for us to sleep at night.
