Here is the download linl for TeamAyu app (Android)
https://disk.yandex.ru/d/ZsWp3WqJTeIndw
I had hard time trying to figure out how to put my nick into 6 symbols. Don't know why I'm actually tried it %) For me this app is absolutely useless, since I can't pay for membership anymore
Also it's fully in Japanese and taking screencaps is prohibited