Fantastic app, based on real science!

Extremely useful application for data-driven training and lifestyle monitoring.

While this app is primarily geared towards dedicated athletes, I am having a lot of success with it as a sanity-maintenance tool; when I dont exercise for a while, my stress goes up and my sleep gets bad, causing havoc in my entire life... With this app, I can see that trend ahead of time and keep ahead of the game.. A misuse, sure, but data is data!

The author is also extremely well versed in the underlying science, and maintains a blog that explains it all in relative-laymans terms, with citations to peer-reviewed papers if you want a deeper understanding.

I bought this app as part of the bundle, and I would happily have paid double for what Ive gotten.

emf1123 about HRV4Training