IntervalTimerHIITTimer is simple and user friendly but it’s missing 2 features to really be 5 stars:
1) being able to save and name the timers. History is cool and why not but it’s not as useful as saving and naming timers, especially if you need several timers saved but you do not use them daily. Like Full Body workout would be easier to find in “saved timers” that looking at the details of all the history to find the correct workout and then repeat it. Way better to go to saved, look for the one with the correct name in an ordered list that allows shorting by most recently used, alphabetical, used most times, longest, etc and include a find function
2) Being able to name the different “work” and “rest” portions, not only useful for workouts that have similar exercises but also for job routines: instead of work, rest, work, rest; it could be crunches, rest, run, cool down or instead of work, rest, work, rest; it could be filing, coffe break, sending reports, stretching. It just takes that out of you mind and let’s you concentrate on the task rather than trying to remember what “work” you have done and which one you should be doing next.