Dropbox announced some time ago that it would be retiring its original sync API, and it is being officially put out to pasture on September 1st to introduce a new, more secure version. This is good news for a lot of users, but people still using apps that were built on that older API will likely find those apps won't work as expected after the September 1 cut off. This includes the older v3 version of 1Password for the iPhone/iPad and 1Password Pro for iOS. While the password manager will still work in other respects, Dropbox-powered sync won't function.
These apps were pulled from the iTunes store last year to make way for 1Password version 4, which means there is no mechanism to release an update for them, but there are still plenty of people using those previous
