Twilight app makes your device screen adapt to the time of the day. 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. The filter intensity is smoothly adjusted to the sun cycle based on your local sunset and sunrise times.
License: Freemium
Twilight is primarily focused on providing a simple and effective blue light filtering solution with an intuitive interface, while Iris offers extensive customization options and cross-platform support, making it suitable for more advanced users. Iris is open-source and integrates well with other applications, whereas Twilight has limited compatibility and fewer customization features.