The lack of proper English syntax in several places - reading about the app, and the permissions - tells me that this was written by a person who does not write standard English, and certainly it is not proofread by someone at the CDC or FDA. The servers may be in the US, but who else is using my data??? This app also isn't titled as the box says - "iHealth COVID-19 Antigen Rapid Test"; it's just called "iHealth test" and took me a while to locate. I already don't trust this app.