Merging Day One accounts

How to merge a standard Day One account and an account with Apple ID

It is possible to have multiple accounts with Day One depending on the option chosen when signing into your account on each device. Here are the sign-in options:

  • Apple ID

  • Day One account (email/password)

When using Apple ID to sign in, we use technology provided by Apple and Day One receives a unique/anonymous token which we use to sign users into a Day One account based on the Apple ID being used in the device Settings. We never have access to the actual Apple ID credentials.

A standard Day One account is one created by the user with an email and password.

If there are two separate accounts, here is how to “merge” them. Be sure that your data is in the Day One app on at least one device. If your data is not present within Day One, please contact support for assistance first. These steps will not affect data in the app or a subscription status. 

Lastly, if you have multiple Apple IDs, please contact our Happiness Engineers first, before proceeding. 

  1. Before you begin, export your data as a JSON file on each device. This can be re-imported if necessary. See here. This is just a precautionary measure and may not be needed.

  2. Save a copy of the encryption key from Day One > Settings > Sync > Encryption Key (iOS) OR Day One > Settings > Journals > Show Encryption Key (macOS) if not already saved.

  3. Sign out of Day One Sync in the app on all devices. 


  • Open Day One on iOS and tap on the Settings icon.

  • Tap your account (Name, email) at the top.

  • Tap Sign Out.


  • Open Day One and click Day One > Settings in the file menu.

  • Click the Sync tab.

  • Click Sign Out and then click to Stop Syncing.

     4. Use these steps to delete the account with Apple ID. This does not affect data stored locally on the device. 

  • Go to in a web browser, then click Sign In with Apple ID.

  • Sign in using your Apple ID email address and password. (Note: This uses an official Apple-provided-and-secured web service.)

  • Once signed in, scroll down to Delete Account.

  • To confirm this choice, click the Login with Apple ID then sign in again.

   5. Sign back in to Day One Sync on all devices using email and password.


  • Open Day One on iOS and tap on the Settings icon.

  • Tap Sign In then Existing Account > Day One Account

  • Manually enter your Day One Sync login credentials.

  • Tap Enable Sync on the popup.


  • Open Day One and click on Day One > Settings in the menu bar.

  • Click the Sync tab.

  • Click Sign In

  • Click Other options…
  • Enter your email address and password

  • Click Sign In

  • Click Enable Sync

After signing in, all devices should show the same User ID.

If all devices are not showing the same Account Status for syncing, please try these steps to Restore Purchases on the platform where Premium was purchased.

**If you have multiple email address and/or multiple Apple IDs, please contact support for additional help.**

Please note that the Account Deletion process takes ~5 days (to avoid accidental deletion). If you would like to link your Apple ID to the Day One account again to prevent duplicate accounts in the future, please wait about 5 days after completing step number 4 and then sign into your account at and link the Apple ID.

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