Cant Sign Up

I cant even get past the login screen. After downloading this app, users are required to create an account and login. Neither button works so even if I had an account, this app would be useless. Id have happily paid for a good mandarin learning app, but Im glad that I didnt pay for this one because I do not have to demand s refund.

AsthmaticMoMo about Learn Chinese (Mandarin) by MindSnacks