[8 Ways] Fix Google Calendar Not Syncing with iPhone

Google Calendar, a scheduling and time management service, allows users to synchronize events and schedules with their Android devices and iPhones. But sometimes, it may stop syncing to your iPhone.

Why is Google Calendar not syncing with iPhone?

When the issue occurs, it might be caused by some reasons below.

☛Internet connection problems.

☛Google Calendar being disabled or blocked.

☛Incorrect sync settings.

☛Incorrect Gmail fetch settings on the iPhone.

☛An issue with your Google account.

☛Problems with the official Google Calendar iOS app.

How to fix Google calendar not syncing with iPhone

Now we'll provide you with 8 step-by-step solutions to solve the problem.

Solution 1. Remove and re-add Google account

Re-logging into your Google account is worth trying: Open Settings app on iPhone > Find and click Calendar > Choose Accounts > Gmail > Delete Account > Delete from my iPhone > Then restart your device.

After that, go to Settings > Calendar > Accounts > Add Account > Choose Google to add it. And make sure to activate the Calendars toggle for this Google account, then tap the Save option.

Solution 2. Check Internet connection

An unstable internet connection can also lead to Google Calendar sync failures. Check your Wi-Fi connection and verify whether mobile data usage is enabled for the calendar app: Launch Settings > Click Cellular > Locate and tap on Calendar, if it’s disabled, toggle the option on.

Solution 3. Quit the Calendar app and relaunch

At times, the Calendar app might encounter unknown errors. Then you can quit the app and reopen it to sync the data again. If it doesn’t work, you can try to delete the Calendar app from your device and reinstall it to fix the issue.

Solution 4. Change Fetch Data Settings of Gmail

Navigate to Settings > Mail > Accounts > Fetch New Data, then tap on your Gmail account, and choose Fetch. Adjust the frequency—options include Every 15 Minutes, Every 30 Minutes, Hourly, or Manually—to match your preferences.

Solution 5. Enable Google Calendars in Calendar App

If the problem still exists, it's crucial to verify that Google Calendar is enabled within the iPhone calendar app: Go to Calendar app > Click on Calendars located in the bottom row > Ensure that the options under GMAIL are checked > If not, enable them and tap Done.

Solution 6. Set Gmail Calendar as Default

Selecting Gmail as the default calendar has proven effective for some users. In the Settings app, choose Calendar > Default Calendar > Wait for a few moments until the option for GMAIL appears. Once it becomes visible, tap on the account to set it as the default calendar.

Solution 7. Reset all settings on iPhone

If syncing Google Calendar with iPhone 12/13/14/15 still isn't successful, you could try to reset all settings on your iPhone to solve the problem: Go to Settings > General > Reset > Click Reset All Settings to finish the process.

Solution 8. Use the Official Google Calendar iOS App

If none of the above seven methods have solved your issue, you can try using the official Google Calendar app to browse your events and schedules.

Bonus Tip: The Best way to backup iPhone data including calendar

Once you have fixed the issue successfully, it’s better to back up your calendar data. Then the professional all-in-one iPhone data management app - FoneTool can help you a lot. With its excellent features and advantages, you can easily back up all your iPhone data including Calendar app data in one click.

Super-fast transfer/backup speed: FoneTool can help you transfer or back up all iPhone data to iPad, iPhone or PC in a very short time. For example, 100 photos can be moved in just 3 seconds.
No Apple ID limitation: With this easy-to-use tool, you can easily transfer from iPhone to iPhone between two Apple IDs.
Preview and selective backup: Unlike full backup with iTunes/iCloud, you can fully or selectively back up the iPhone. And preview the files in the process to choose which needs to be backed up.
Universal restore: The full or selective iPhone backups can be restored to another iPhone/iPad simply.
Wide compatibility: FoneTool is compatible with various iOS devices, including iPhone 4 to iPhone 15, iPad/iPad Pro/iPad Air/iPad mini, iPod Touch and the latest iOS 16/17.

You can download and install FoneTool on your Windows PC to fully back up your iPhone data.

Step 1. Connect your iPhone to the PC > If prompted, click Trust.

Step 2. Launch FoneTool on your computer > Go to Phone Backup > Full Backup > Click Get Started.

Step 3. If necessary, check Enable Backup Encryption to protect your private data > Choose a storage path to store your backup > Click Start Backup to begin. (You can also change the storage path to directly back up your iPhone to external drive.)

Next time when you need to restore the backup to this iPhone or other iOS devices, you can go to Backup History > Click Restore to make it.

Final words

After reading this passage, you will get 8 ways to fix Google Calendar not syncing with iPhone issue. You can reopen or reinstall the app, change settings, check Internet connection to make it. If these ways cut no ice, then you can use the official Google Calendar app to view your schedule.

Once you have fixed it, it’s recommended to back up your Calendar app data with FoneTool. This user-friendly app can finish all iPhone/iPad data management tasks efficiently. If you need, it can also help you transfer iPhone Calendar to iPad.