I have used Nimbus on 3 mobile devices (one phone, 2 tablets) and 2 PCs. In addition, I access the web application as well. No matter what I do, no matter how many times I try to sync, no two devices sync with one another. I also use Evernote in the same way and have absolutely no issues. Unfortunately, I have been as patient as I can with this app. I hope you find an answer for this for other users. I'm done.
Customer support service by UserEcho