f.lux is a cross-platform computer program that adjusts a display's color temperature according to location and time of day. Developed by f.lux Software LLC
License: Free
F.lux offers extensive customization options and integrates well with third-party applications, making it a versatile choice for tech-savvy users. In contrast, Red Moon provides unique features like Game Mode and notifications, catering more to casual users looking for straightforward blue light filtering solutions.