Major obstacle when sending feedback. No email address. End-user has to go to playstore to find email address, even then can't copy and paste. In spanish lessons, double up feature (after finishing a series of lessons) does not register immediately. Spell correct is inconsistent. Swahili lesson has so many inconsistencies far too many to mention. Some issues persist from 3 years ago ... Uninstalled for aforementioned reasons a few years ago. Now uninstalling "again" needs uninstall counter