RSIBreak is described as 'small utility to remind you to take regular short breaks. Repetitive Strain Injury illness which can occur as a result of continuous work with a mouse and keyboard. The risk of suffering injury increases the longer users work without breaks' and is an app in the Sport & Health category. There are more than 25 alternatives to RSIBreak for a variety of platforms, including Windows, Mac, Linux, BSD and PortableApps.com. The best alternative is stretchly, which is both free and Open Source. Other great apps like RSIBreak are Workrave (Free, Open Source), Eyeleo (Free), Iris (Freemium) and Time Out (Free).
stretchly is cross-platform open source app that reminds you to take breaks when working with computer. By default, it runs in your tray and shows reminder window every 10 minutes, that is open for 20 seconds, containing idea for microbreak.
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.
EyeLeo is a handy PC application that reminds you to take a break for your eyes. Features: Screen blocking long breaks every hour. Short breaks with eye exercises every 10 minutes. Eye exercises shown by an adorable Leopard.
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.