How to sync with Dropbox?

Very new to this and trying to figure out how to sync my project with dropbox so i can use via the iOS app, but I’m having a little trouble finding out how. I searched the forum and can’t seem to find a topic stating how to get started, its basically troubleshooting after initial set up.
Can someone point me toward where the process is described.

Full setup instructions: … g-with-ios

Troubleshooting guide: … os-syncing

Support FAQs: