VoiceOver and TalkBack
You can move through the app by speech, keyboard or braille. Buttons, fields and animal cards announce what they are and what they do, and lists announce how many items they hold.
Creating an account, browsing the map, publishing a report, managing your settings, deleting your account: all of it works with a screen reader. Deleting your account is part of that, because it is the one thing you cannot ask someone else to do on your behalf.