Sale has ended but you can still get this app.
Download Silent Tabata Now

Official Description

When exercising at home, I often came to situation, when I was unable to play music to my workout - daughter was sleeping or it was already to late... So I created this simple app. It contains standart tabata (8x 20/10 seconds) and 3 different HIIT - times only. You still have to choose your workout, but this app will track your time and phases.

On display, there is current phase displayed, time left in phase and over all progress in excersise. Used colors are - green = Go for it, maximal effort, hight intensity workout. Yellow = recovery phase, small intensity, Red = pause