Frustratingly, it’s very much easy to erase the text review you have written in the app. Accidentally clicking the back button will clean it permanently, various other things might do it. That’s completely unacceptable. The app is meant to be used in more or less social situations, and losing the text you’ve written creates major frustration, and complicates things for the user, who needs to type more again, or just give up.
It’s another issue that puts off users from using the app regularly.
Is it possible for the app to do keep the text somehow temporarily (device memory?) before it’s uploaded and thereby made permanent?