RestStop is described as 'Sits in your tray and gives you non-intrusive reminders to rest after you’ve worked continuously for awhile. It looks like an hourglass, and it fits right in with the other Windows tray icons' and is a Health tool in the sport & health category. There are more than 25 alternatives to RestStop for a variety of platforms, including Mac, Windows, Linux, iPhone and Android apps. The best RestStop alternative is Stretchly, which is both free and Open Source. Other great apps like RestStop are Workrave, ZenBreak, Glance - Prevent Eye Strain and Micro-Break.