TimeR Machine is described as 'Free interval timer for not just workout and exercise, but also any situations you need to construct personalized, multi-stage timer plans. It's highly customizable and able to create almost whatever kind of timer you need' and is an app in the sport & health category. There are more than 10 alternatives to TimeR Machine for a variety of platforms, including Android, iPhone, F-Droid, iPad and Android Tablet apps. The best TimeR Machine alternative is Workout Time!, which is both free and Open Source. Other great apps like TimeR Machine are Interval Timer (PFA), Just Another Workout Timer, TimerLabs and ProtoFit: Workout & HIIT Timer.