That’s disappointing :/ do you have a source you could share?
Also, I’m confused about the versions available. From the comments here, there seems to be a free and paid version. But if I go to FDroid there’s obly the “pro version” there. That’s what I’ve been using and I see no ads. Where is the other one at?
A study where subjects were intentionally infected? Please tell me you have a link to that study