If you are looking for the best interval timer, then you are in the right place! Interval Timer is a free application designed for Android that can help you with all kinds of activities. 

Time your boxing rounds, circuit training, calisthenics circuit, HIIT training, and Tabata in the most simplest way! 

You will love this app more because of the amazing features it brings! You can save the presets so you can toggle between activities. You can use it in the background while doing other stuff like watching, browsing, and more. You can also enable vibration or silent notifications, and even get music that is great for headphones!