FTP On The Go Support about 17+ Rating
There is not anything objectionable within FTP On The Go itself!! But it is an app that allows access to the Internet, where just about anything can be found.
Apple's rating policy means that any app that provides "Unfiltered Access to the Internet" must be rated 17+. This includes FTP On The Go, as well as Safari on the iPhone and other apps too. From a parental control viewpoint it makes sense. But it means this business tool must be rated 17+.