★★★★★ This app is insane. Tabata style multi-timer with an extemely clean and fully customizable interface. You can add tags for searching, pics and notes that can be displayed during the workout. Timer can be seen in notification from lock screen and have its color change based on the type of timer. The only thing I would want is more functionality out of the "rep" timers. Like the ability to actually count them with a tap, or set a metronome for timing. Even without those features- still amazing!