The Aavia app does not work. It resets each day, forgetting any data from previous days. Because it forgets all data, it does not send reminders at all to take birth control, which is the only point of this app. Before discovering this, I had ordered a case for over $30. Aavia touts that if they don't make your life easier in 30 days, you get a full refund. I have now reached out to Aavia via chat in app, Instagram, Twitter, email, and phone to request a refund and have heard nothing back at all in over a week. I am ready to dispute this charge with my bank.
Literally everything. App functionality, customer service, communication, etc.