Google Calendar two-way sync

What two-way actually means

One-way sync flows in a single direction. Events you create push up, but if someone moves a meeting in Google, your app never hears about it. You end up carrying two disagreeing schedules.

Two-way reflects changes from both sides. An event you wrote as a note shows up in Google Calendar, and when a colleague pushes a meeting an hour later, that change comes back to Noti. This matters because almost nobody uses a calendar alone — work events arrive as invitations, family events live on shared calendars.

What crosses over

Knowing the exact boundary saves surprises later.

• Syncs — Event title, date, time, location, and description — in both directions.
• Does not — notes — Note bodies never go to Google. Turning Google Calendar into a note store is not the goal.
• Does not — tasks and alarms — Tasks and alarms live inside Noti. They are separate from Google Tasks.
• Across devices — Notes, tasks, and alarms travel between your devices through your Noti account rather than Google. Signed in means on.

Connecting, and what access is requested

Connecting is a single Google sign-in. Noti asks for two things: read and write on calendar events, and read on your calendar list. It does not touch mail, contacts, or Drive.

If you keep separate personal and work calendars, you choose which one Noti writes to. That is where you draw the line if you do not want the two mixed.

Disconnecting does not delete anything. Events already pushed stay in Google Calendar.

How conflicts resolve

Edit the same event in two places at nearly the same time and something has to give. Noti resolves it as last write wins. A simple rule is easier to predict, and for personal scheduling it is almost always the right answer.

The losing change is not silently dropped. When an overwrite happens it is recorded in your notification center, so you can see what changed afterwards.

Changes made offline queue up and push when you reconnect — which is why an event written underground does not vanish.

Using several devices

Capturing on a phone and reviewing on a laptop is the common pattern. While you are signed in, cross-device sync is always on; there is no toggle to remember.

It runs more often while the app is in front of you and less often in the background, plus once whenever you reopen the app or the network comes back. On the rare occasion a change is missed, a periodic full sync heals it.

Sync state is visible in settings — the last successful sync and how many changes are still waiting to go up.