Unfortunately not working for me

I just wanted to see a quick graph of my heart rate. I think the interface is quite confusing. Just a graph of your heart rate should be the most basic feature of the app but I only get messages that I need to purchase some packages. Because the interface is poorly designed and even the most basic feature is not easily accessible I doubt the app is really good. It was frustrating trying to get a graph and trying features not knowing which ones require additional purchases.

Kionoiva about Heart Graph, v3.10