What's the difference between "Sync" and "Push"?
They're two separate things. "Sync" moves to-dos between this app, the Supernote cloud, and your device — the Supernote-to-Supernote flow that's always on. "Push" sends your to-dos OUT to a third-party app like Todoist, Apple Reminders or Google Tasks. So you'll see "Sync now" / "Next sync in…" for the Supernote side, and "Push now" / "Next push in…" for sending tasks elsewhere. Turning one on or off doesn't affect the other.