Backup, Sync, Share!
Dropbox doesnt look like a native iOS app. It doesnt provide any iOS-specific feature except a few simple updates such as 3D Touch.
Dropbox didnt implement it but iOS9 now allows us to send Dropbox files as email attachments instead of sharing their links through the default Mail app.
Its also very important to have an option to edit files using Pages, Numbers, and Keynote too. Theres no way to copy/paste files from/to iCloud Drive as well.
Although Dropbox itself is one of the best cloud services, this app doesnt get more than 3 stars for now.
incineration about
Dropbox: Cloud Files Storage, v7.2