Having the same problem as other people cannot use weekplan on my tablet, only on my computer. It doesn't detect my usual weekplan email adress, but detected all the email account on my tablet, which are used only for games. WT*/*%!!!!
Cannot log onto account with my tablet. I used playstore to install it, but doesn't work. Weirdly, it's working when I use chrome directly.
App:
Until we find the source of the issue, you can create a password in your user settings, and use your email / password to log in in your app