Recently I did a review of Instacast for Mac. One issue that hurt the app was the syncing issues between the Mac and iOS versions.

My colleague Michael pointed out a fix to me that has worked beautifully. It involves putting the following command into a browser on either the Mac or your iOS device of choice: ‘instacast3:///sync/reset’.

It brought up this screen on my Mac (I chose the “Keep content from the cloud” option)

Instacast Cloud Sync Reset

I also did the same thing on my iPhone.

Though my review still stands since it is still an issue without this fix, hopefully this issue will be patched in a future update without having to use a workaround.