Hi amuja allarmsllc sharctrading
FYI, there is no need to use the same email you used to register on the Stock Management Labs website to download the App from Google Play. You just have to use your actual Google Play account to join the group and, once joined, you can download and install the APP and log in with your ATUM account.
Just make sure that you use the same Google account to join the group and to download the App from your mobile.
Anyway, we've just made some changes to the beta testing group just now. Might you try to install the App again and let us know if it works this time, please?