Reasons for 1 star: 1. On my Pixel 3, the app consistently freezes for me when scrolling through past transactions, forcing me to close and relaunch the app. 2. Most times when I launch the app, the biometric prompt pops up twice. I only need to authenticate once but it is visually jarring. There are other times when launching the app, where I am not forced to authenticate at all which is a major security flaw. 3. I can't just copy my username, forcing me to type it out to send to friends.