Hi Jenn,
Thanks for the question. I'd not come across Sync.com before - so just tried it out. It worked for me, from my iPad, so some recommendations...
1. Open Quine and navigate to your
sync.com Files folder
2. Tap the "Create Wiki" button
3. Allow Sync.com time for the new file to be synced to Sync.com - it seems that it does not make the new file available until it has made its' way to the cloud
4. It should open in Quine - it did for me, as soon as syncing was complete
5. Close your new wiki - you are taken back to Quine's file browser and the Sync/Files folder
6. Your new wiki file may, or may not, appear there - Sync.com seems to take time reflecting the new file's existence; you can exit the Files folder and re-enter it to hurry it up
7. Re-enter your Sync/Files folder and your file should appear - maybe with a cloud-download icon, which you can tap to encourage the download
I did see significant lags with Sync.com - I am on a fast network, so it is unusual to see lags.
If in doubt - try the same process in an Apple App, like Pages, or Numbers etc. The procedure above was the same for me with Pages as with Quine.
I hope this helps - but please let me know how it goes.
Chris.