macOS Sierra

Folder Sync v1.4.7 is having problems on macOS Sierra. We have a fix in place but it isn’t approved by Apple yet. You can download a beta of the fix here until such time as it is approved by apple and available on the Mac App Store. Please note that depending on your preferences you may need to go into System Preferences app->Security & Privacy and give this temporary app permission to run.
Folder Sync v1 was written on OSX 10.6 and doesn’t support a lot of the latest apple technologies introduced since and it is becoming increasingly difficult to get approval for these types of application. We are working on a complete rewrite of Folder Sync to address these issues.