Updated review for 1.2.1
Syncing was not working for me; but the support team replied very quickly to ask if I had the iCloud setting enabled... I did *not*... I have been waiting to upgrade to iCloud Drive for years because of one of our computers that still needed to sync iCal on the old system.
Anyhow... I went ahead and upgraded that computer... then I enabled the option... problem solved.
App works as expected, now!
----
Noticeably lacking is being able to see the number of sessions completed and the chart data on the OSX app like you can on the iOS app... but not a deal breaker.
Actually Sean about
Focus Time Activity Tracker, v3.5.1