iPhone Tips

Why Reminders Not Syncing Between iPhone and Mac? Here's the Answer!

by Sophie Green   Updated on 2021-01-27 / Update for  iPhone Tips

One of the iOS users on the Apple forum recently posted, "My Reminders on my iPhone aren't syncing between other devices, such as my iPad and MacBook. How do 8 solve this issue?" refer to the screenshot below.

reminders not syncing between iphone and mac

There might be several reasons that your device's reminders not syncing between iPhone and Mac. This might be due to incorrect date or time settings. In this article, we'll discuss the reasons behind this problem along with solutions.

Part 1: Why Reminders Not Syncing Between iPhone and Mac

There can be countless reasons for iCloud reminders not syncing. Let's list down a few of them:

  • System status of iCloud Contacts, Calendars, and Reminders.
  • Your device might be operating an outdated iOS, iPadOS, or macOS version.
  • The device's date and time setting aren't correct.
  • You might have used a different Apple ID to sign in to iCloud.
  • Your device might have a poor internet connection.
  • You might have reached the iCloud storage limit.

Part 2: How to Fix Reminders Not Syncing Between iPhone and Mac

For iOS 13 and iPadOS or later

Mostly, iOS 13 reminders not syncing problem is common but there's always a solution to every problem. After performing all the below-mentioned steps, you need to check your contacts, reminders, or calendars.

  • Refresh your contacts and calendars.
  • Check your app settings.
  • Set iCloud Contacts, Calendars, or Reminders as your default.
  • Restart the Contacts, Calendar, or Reminders app.
  • Turn off iCloud Contacts, Calendar, or Reminders and turn it back on.
  • Restart your iPhone, iPad, or iPod touch.

    iCloud reminders not syncing

Choose this section if you're using iOS 13 otherwise skip to section 2 below.

For iOS 12

For iOS 12, you'll have to perform the same steps that are mentioned above. The only difference between both sections is only the iOS version. If you're facing an "iPhone reminders not syncing" issue then you need to perform these steps. However, we'll suggest you refresh your contacts and calendars after each of you implemented these steps.

For WatchOS

If you're still facing the Apple Watch reminders not syncing, then here's what you can do to get rid of it.

  • Open the Watch App on your device and tap on the My Watch tab.
  • Tap on General > Reset.
  • Now, you can tap on Reset Sync Data.

Related Read: Top 4 Ways to Recover Deleted Reminder on iPhone

When All Else Fails: Try Tenorshare ReiBoot iPhone Reminders Not Syncing

Tired of trying all methods including the one mentioned above? Don't worry, Tenorshare ReiBoot is the only tool that can help you. It's the best choice and professional iOS system recovery tool that helps you to repair any type of bug in seconds. Try this, if you're facing iPhone reminders not syncing problem, you can use this tool to get rid of varying iOS issues.

Here's how you can use this tool to deal with sync reminders iPhone issues.

  • Install and launch ReiBoot on your computer, then connect your iPhone to the computer then click "Start" button under iOS System Repair.

    icloud reminders not syncing tenorshare reiboot
  • Next, select "Standard Repair" and click the button to repair.

    ios 13 reminders not syncing
  • Now, you will need to download a firmware on your computer. Click "Download" to move on.

    reminders on mac not syncing with iphone
  • Once the firmware downloaded, click "Start Standard Repair" to start repairing. Wait for a while, your iPhone will be fixed.

    iphone reminders not syncing tenorshare reiboot


Mostly, iOS users face iPhone reminders not syncing problem due to some reason. In this guide, we've discussed the issues along with the most suitable solutions that you can adapt to get rid of reminder issue. If nothing works effectively, you can use Tenorshare ReiBoot to get rid of all types of iOS issues.