How to import Omnifocus tasks in an own iOS App
 

I am about to create an iOS app that needs to import Omnifocus tasks. Which would be the best way to implement this? Most importantly it should be quick and easy for the user to connect.

E.g. is it possible to access the Omnisync service directly via some sort of API? The only way I currently see is using a process using the manual export in Omnifocus and import to the app via iTunes - but this is definitely too complicated to be feasible.

Is there a recommended way to do this? I appreciate any advice.

The sync server is webdav.