Sync

Across works based on calendar and reminder data stored in the iOS/macOS system.
In most cases, synchronization is automatic in real time or within a few minutes.
However, in some situations, sync may be delayed or events may not appear immediately.
Please go through the checklist below.

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📱 iPhone / iPad

1. Confirm Apple ID

• iPhone Settings > Apple ID
  Make sure all devices use the same Apple ID.

2. Enable iCloud for Calendar & Reminders

• iPhone Settings > Apple ID > iCloud > iCloud Storage > See All
  • Calendars → On
  • Reminders → On

3. Enable Keychain

• iPhone Settings > Apple ID > iCloud > Passwords & Keychain
  • Toggle must be On

4. Calendar Sync Range

• iPhone Settings > Apps > Calendar > Sync
  • Select All Events

5. iCloud Account in Calendar

• iPhone Settings > Apps > Calendar > Calendar Accounts
  • iCloud account must be listed

6. Calendar: Fetch New Data

• iPhone Settings > Apps > Calendar > Calendar Accounts > Fetch New Data
  • Push: On
  • iCloud: Push
  • Fetch: Automatically

7. iCloud Account in Reminders

• iPhone Settings > Apps > Reminders > Reminders Accounts
  • iCloud account must be listed

8. Reminders: Fetch New Data

• iPhone Settings > Apps > Reminders > Reminders Accounts > Fetch New Data
  • Push: On
  • iCloud: Push
  • Fetch: Automatically

9. Across App Permissions

• iPhone Settings > Apps > Across
  • Calendars: Full Access
  • Reminders: On

10. Third-Party Calendars

• iPhone Settings > Apps > Calendar > Calendar Accounts > Add Account
  • Add Google, Naver, etc. separately on each device

11. Launch Across

Open the Across app and check if events/reminders appear.

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🔄 Manual Sync Tip (iPhone/iPad)

If sync seems delayed:

1. Open the Apple Calendar app

2. Tap Calendars (bottom center)

3. On the list screen, pull down to refresh

This forces a system-level sync, which Across will reflect automatically.

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💻 Mac

1. Confirm Apple ID

• System Settings > Apple ID
  Must match iPhone/iPad Apple ID.

2. Enable iCloud for Calendar & Reminders

• System Settings > Apple ID > iCloud > Show All
  • Calendars → On
  • Reminders → On

3. Enable Keychain

• System Settings > Apple ID > iCloud > Passwords & Keychain
  • Must be On

4. System Permissions

• System Settings > Privacy & Security > Calendars
  • Across → Full Access
• System Settings > Privacy & Security > Reminders
  • Across → On

5. Third-Party Calendar Accounts

• System Settings > Internet Accounts > Add Account
  • Add Google, Naver, etc. directly

6. Launch Across

Open Across and confirm your calendar and reminders are syncing properly.

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🔄 Manual Sync Tip (Mac)

If sync doesn’t seem to reflect:

• Launch the Apple Calendar app
  This may trigger a background sync with iCloud.
  Changes will be detected by Across shortly after.