The current FAQ here: https://getrocketbook.com/apps/faq#!does-the-app-sync-across-devices states “The app currently does not sync across devices. If you'd like to use multiple devices, you'll need to set up your connections on each device.”
This seems like a feature that should be considered in order to keep multiple devices in sync and to be able to process scans to your destinations regardless of which device you’re working from.
Example - a phone & tablet used interchangeably to scan / upload notes... you may not want different destinations depending on the device you use, you may have scanned a page from your phone but be working from your tablet and need to send it to the desired destination.
This feature should be a set-up option to allow multiple device app sync in case some don’t want this capability.