It literally nonsense and wasting time!!! None of features and useless!!!!

It won’t measure your oxygen, the app description is misleading, it only measures your HR but not oxygen, it only allows you to record your oxygen measured by your own mean.

Garbage …. I Try Testing oxygen level iT says Manually Enter… where’s The actual Test4 iT..

I cannot access this app and I have paid for it. I tried to “restore”. I do not want to re-purchase anything. I have already paid through next January.

I’m so glad that I found this app. It does exactly what I need, and nothing more. In an age were “subscription fatigue” is a real thing, I am very grateful that there are some apps that offer a flat price.

We on now

Too many long ads that don’t return to the app. Won’t take more than one reading a day.

No instructions

Wanted it to monitor oxygen during sleep but the only thing it accomplished was to raise my blood pressure after trying to get the app to appear on my watch after downloading in my phone. It doesn’t even appear on search on my watch.

Horrible. Not on my watch. Spent hours of time