APK synchronize Data

Greetings, how can I synchronize the QSO data on different devices?

Hi Lobo,
Just to be clear, APK refers to the application “executable”, not a data file.
The PoLo database, on the other hand, is an sqlite file stored on your device.
There is a way to backup the database on one device and then replace the database on another device. This is not a merge feature. See more here:

A sync service is planned for the future but is only 1-way at this time.

Alan