I felt like the offline use of Synchro in iPad is still pretty much under developed. I have big clients who work in rural area which doesnt have stable/ strong internet in the field. We can download PDF but we cant use the PDF markup function. It feels like it is only serve half of the purpose. Also, I tried playing it in my office and i found out that it is not as stable when offline. Overall performance/ responsiveness of the apps still need improvement.
We understand the need for this feature and it is being considered for a future release.