Best measuring app ever

to prove your heart rate.
Works perfectly just with the LED light and your camera in your iPhone. The first time I had test the app, I was totally confused and wondering how good it works. Use all apps from this company every day. Top top top top

Dear Developers, thank you so much for this apps, please go on with this.

Regards

MoneyING about Sleep Cycle heart rate, v1.2.2