Neither of them really "solve" sync. It's still a problem for complex applications but it works for say, 80% of the solutions. Anyways I use both and to me th

Neither of them really "solve" sync. It's still a problem for complex applications but it works for say, 80% of the solutions. Anyways I use both and to me they aren't really competitors. Apple doesn't allow stuff like Dropbox to have tight integration with IOS - the biggest value iCloud provides is stuff like Photo syncing, which they aren't even good at. Funnily enough, what I do is enable iCloud photostream, then store my iPhoto library in Dropbox. The idea is that whenever I take a photo on my iPhone it gets seamlessly synced AND backed up automatically OTA.