Quote from Vasilis on June 26, 2019, 9:41 pm

In this version we implemented something that was requested a long time ago (not very long 🙂 )

The iTavli app was using the phone state to create a unique ID. A few users were annoyed by the fact that they would grand the iTavli app access to the phone state of their device. Thus, to address that issue, we removed that permission in version 4.7.9.

We have taken certain steps to prevent this change from affecting your online statistics. But, this would work only if you backup your device prior to the update.