Eyes Relax is described as 'It’s an utility that helps avoiding eyes-related problems when working at a computer for several hours. Concentrating your eyesight on a computer screen can cause an eye strain. You can prevent this by taking regular breaks during the work and look at distant objects' and is an app in the sport & health category. There are more than 25 alternatives to Eyes Relax for a variety of platforms, including Windows, Mac, Linux, iPhone and BSD. The best alternative is stretchly, which is both free and Open Source. Other great apps like Eyes Relax are Workrave, Safe Eyes Linux, Time Out and Eyeleo.
Workrave is a program that assists in the recovery and prevention of Repetitive Strain Injury (RSI). The program frequently alerts you to take micro-pauses, rest breaks and restricts you to your daily limit.
SafeEyes is an application that tries to protect your eyes from eye strain (asthenopia) by reminding you to take breaks while you're working long hours at the computer. It was created as a free and open source Linux alternative for EyeLeo, a Windows-only app.
Iris is software which makes monitors healthy for the eyes. With iris you can reduce the blue light emitted from your screen for better sleep, reduce the brightness of your screen without PWM and avoid eye pain.
Save yourself from RSI and eye-strain
BreakTimer allows you to set up customizable breaks and will remind you to take them.
BreakTimer is free and open source and available for Windows, macOS and Linux.