There have been a lot of negative reviews and I feel bad for those folks. It would be awful to lose all my quotes! One negative reviewer suggested the only positive reviews were from people who just found or barely began using this app. That does not describe me. Ive been using this app since the 2.0 update. (FYI: I have the latest iOS updates and an iPhone 6.) I love this app! I couldnt survive without it. I currently have nearly 2,000 quotes and Im still going strong. I primarily use it on my iPad. In fairness, syncing between my iPhone and iPad wasnt reliable (authors and sources kept getting jumbled) so for the most part I stopped using it on my iPhone. I utilize the backup feature often and it has been great for me. My brother uses this app too and we share our quote collection back and forth.
There are some features Id love to see in the next update (i.e. ability to italicize portions of a quote for emphasis or a source for books, undo star ratings, have quotations and apostrophes curved rather than straight, have emdash abilities, and a find and replace feature) but overall this is still the single best quote app Ive found. One feature I really like is the ability to add multiple topics (tags) for a quote.
If youre a prospective buyer I hope my review provides a little balance to the negative reviews. More importantly, I hope your experience will be like mine has been--grateful, excited, pleased, and well-organized.
mbchristensen about Quotebook — Notebook for Quotes