I'm about to purchase an iPhone 4S primarily for business purposes. I'm concerned about how safe my business communications (email & texting) will be if I use iCloud and the synchronization service to keep my MacPro and iPhone synchronized. Does anyone have experience with how companies handle this issue?

Does the iCloud also synchronize all documents such as Excel, Word, InDesign, etc. from the MacPro to the iPhone? If so, the largest capacity iPhone would be swamped with the stuff from my MacPro. From looking at the Apple Store ads, it appears that documents are not routinely synchronized. Is that true or am I misreading it?


Mac Pro dual Quad-Core Intel Xeons Early 2008; 16GB RAM; MacOS X 10.11.6, iOS 9.3.5