On my Note 8, S-Planner syncs with not problem with my PC's Google Calendar and the s-Planner on the Note 3. On Note 3 (4.2.2 stock), without Google Calendar also installed and entering on S-Planner nothing is installed except on Note 3. It seems I must have Google Calendar installed on Note 3 for sync to work with PC and Note 8. When I get a notification, I get it twice. It is a PITA and I'd like to use just the S-Planner on the Note 3 but I need sync. Any help please.