The iPhone version is a great app for Flickr users - works well on iPhone 6 to call up any album at any time. I have over 100,000 photos and crashing is not an issue for me. It allows permission editing on individual photos. Features are not consistent between iPhone and iPad versions - I can edit permissions on whole sets on the iPad but not on the iPhone. One nagging bug is that the app quits when you open another app (or maybe just certain other apps), so background uploading stops. It works fine if you keep the app open and then the phone goes to sleep.... But if you want to upload to Google and/or Amazon at the same time, Flickr has to be opened last and has to stay open.