Restwise is the first system that lets athletes and anyone who exercises simply and accurately quantify their state of recovery. Enter 12 easily measured inputs each day, and Restwise calculates your recovery score. Used alone or with a coach or trainer, Restwise is an essential tool for optimizing any training or exercise plan. Requires an online subscription to Restwise.
It's crap and not free
A Google User
Graphics could be a bit better but great functionality and easy to use!