Do leave home without it.

I have been competing at an international level for over 40 years. This App really will help you not overtrain and also shows you when you can really push yourself. I use a Bluetooth heart rate monitor to measure my HRV.

Great App you must purchase if you dont want to have a massive failure in your health.

Oscar Chalupsky
12X Molokai World Surfski Champion

Oscar Chalupsky about ithlete Train.Recover.Perform, v3.80