Sport Timer APP
Pick exercise and rest time, choose number of repets and add your exercise to the set. You can have as many exercises in your set as much you want, you can also delete exercises and choose your own order. And then just click the start button and your training will start.
To save a set simply click save button and choose it's name. In My Sets tab you can see all your saved sets. After saving set you can still delete and change the order of exercises.
Number Picker made by Marcin Szalek:
https://pub.dev/packages/numberpicker