A cool app, but...
A cool app, but it is necessary to do price optimization for a certain region, since in the CIS it is a lot of money for such functionality. And one more small minus - a lot of actions need to be done on devices (for example, log out, log in, restore data from a backup on the first device, then log in again, etc.). If it is possible to reduce the number of necessary steps to transfer data, it will be generally gorgeous.