Apps always create duplicate notes which is a result of frame loads interrupted.
Just read good reviews and decide to give notebboks for ipad a try. First feature I tried is adding a photo and found that every time I edit the note and exit, there will be an extra note created. If I open the extra note, it shows "frame load interrupted". I thought something wrong with my photo or iPad so I change the photo and also tried restarting my iPad. The Notebooks app still created extra notes for me. Can't find any similar post on the FAQ.