Has potential
Nice start. But it has memory glitches that render it useless for a 3 minute long flip book, even for novice level. After building a book of about 150 pics, which is not quite 3 minutes worth at 1 FPS, it starts dropping out previously added pictures whenever I attempt to add new ones from my camera roll. Specifically, this happens when Im trying to add and move new pictures to the middle of the project. The last previously added pictures start dropping out. Also, the frame rate wont save to 1 FPS. It defaults to a faster speed. Perhaps if all you want is something about 15 to 30 seconds long, this app is easy to use and may work for you.
wkcarroll about
Moments - Create Beautiful Time Lapse & Stop Motion Movies