Absolutely dreadful! I've always liked the PDF format for documents. Recently, I installed an Omron ( blood pressure) app in this phone, a Samsung Galaxy s10. When I try to export a blood pressure report and email it to myself, I'm presented with a message asking me to pay a subscription fee. My son also has the Omron app and his Samsung device runs on the same version of Android as mine. He doesn't get this issue. I've deleted the payment card from Google Play but that hasn't helped.