Your comments

If I had known that the app didn't have automatic sync I wouldn't had bought it :(

I was stupid enough to assume that if it had Dropbox support it would also have automatic synching.

I was planning to use your app for coding while travelling. In my case "coding" implies large projects with multiple files (500 at least).

Keeping track of all the files I modified in my head is definitively not an option. And as I said the projects are rather large so .... zipping and sending the project every time I decide to make a change is also not a good option.