Board Thread:Troubleshooting/@comment-58.174.147.228-20190624074717/@comment-38946466-20190624120446

The app can be played offline. I can't tap play that means it is not installed.

Keep in mind that installation takes a while, even after it updates from play store, it downloaded stuff from the web before play is enabled, then it keeps on downloading in the background...

I would suggest keeping the tablet on charger while installing/updating etc because otherwise, tablet might decide to cut wifi if too much data being exchanged and draining battery.

If you still fail to install the app, contact mytona support https://mytona.helpshift.com/a/seekers-notes-hidden-mystery/

Hope this helps!