I don't have the answer to your Nimbus question, but I do want to make sure that you know that if you want "offline" access to your notes on Android then you need to select the notebooks to to view in "offline" mode. Based on the memory on your phone, you may want to only download "selected notebooks." When I'm traveling or someplace that may have sketchy internet, I download the Notebooks and/or notes I will need. You find this option by clicking on the 3 line menu (bottom left of screen) and then clicking on the gear icon next to your name, which opens the settings menu. Select "notebooks" and then "offline notebooks." When you click on "download selected notebooks" you will get a list of all of your notebooks which can be toggled on individually. Hopefully this information will be helpful to you.