Blutsauerstoffebene

Richard

Can’t figure out how to make it work

App

Does not work. Do not charge me

Mrs

I love it

Improve

It would help to have instructions on using app.

Horrible app

This app does not do what it says to do! It does not give oxygen levels ....

Blood Readings

Not getting my blood readings !!

Fake

This app is fake and don’t work. It gives u a reading that’s not even urs. Don’t waist ur time.

Does not work.

Does not record but once a day. HR not accurate.

TOO MANY ADS.

Way too many ads.

Worthless

This app looks like it should record your blood oxygen, but it does not. It is only interface to record results from other devices.