If events created on your Apolosign device screen do not appear on your iPhone's native Calendar app, please check the following three essential settings:
Step 1: Re-import Calendar for Two-Way Sync
The sync type (One-Way vs. Two-Way) can only be selected during the initial import and cannot be toggled later.
If your calendar was previously set to One-Way Sync, delete the linked calendar, and re-link it using Two-Way Sync.
Note: Two-Way Sync requires your Apple ID email and an Apple app-specific password.
Step 2: Select iCloud as the Target Calendar
When creating a new event directly on the physical device screen:
Tap the Calendar / Source field in the event creation window.
Manually select your iCloud Calendar instead of the local device calendar.
⚠️ Important: Events saved under the Local Calendar exist only on the physical device screen and will NOT sync back to your iPhone.
Step 3: Check Your iCloud Storage Space
Verify your Apple account storage on your iPhone:
If your iCloud storage is full, the device will be blocked from uploading new events to your Apple account, causing two-way sync to fail.
Still having trouble? Please ensure both devices have active internet connections, or contact us at support@apolosign.com for further assistance.