Seeking Android Testers for ZigxZag - Feedback on Stability, Bugs & UX

A solo developer is running a Google Play Closed Test for their app, ZigxZag, and is seeking testers. Feedback is requested on bugs, crashes, app stability, performance, user experience, and any encountered issues. Testers are required to join the Google Group and keep the app installed for 14 days. The developer also offers to test other apps in return.