To resolve the syncing issues with PocketLife Calendar across devices and with shared users, follow these detailed steps:

1. Check Sync Settings on Each Device:
- Open the Settings app on your device.
- Scroll down and select Calendars.
- Ensure the Sync option is set to All Events. This allows all calendar entries to sync across your devices - learn more.

2. Verify Your Accounts:
- Go to the Settings app, and navigate to [your name] > iCloud.
- Make sure that the Calendar toggle is enabled. If it's off, turn it on to allow syncing with your iCloud account - learn more.

3. Log into PocketLife:
- Ensure that you are logged into your PocketLife account. Check this by opening the PocketLife app, navigating to Settings, and verifying your account details - learn more.

4. Check Internet Connection:
- Confirm that you are connected to a stable Wi-Fi or cellular network. A strong connection is vital for syncing data across devices.

5. Update the App:
- Ensure that you are using the latest version of PocketLife Calendar. Check the App Store for any updates and install them if they're available. This can often resolve bugs that might be affecting synchronization - learn more.

6. Restart Devices:
- Restart the devices you are trying to sync. Sometimes, syncing issues can be resolved simply by rebooting.

7. Use Shared Calendar Properly:
- If you are trying to share a calendar with other users, double-check the sharing settings in your PocketLife app. Navigate to the Calendar you wish to share and confirm that the correct permissions are granted to other users - learn more.

8. Force Sync:
- In some cases, forcing a sync may help. Go to the Settings of PocketLife and look for any option to manually initiate a sync.

9. Consult Support:
- If problems persist, consider contacting PocketLife support for further assistance. You can visit their official support page for more detailed help - learn more.

By following these steps, you should be able to resolve the syncing issues with your PocketLife Calendar across devices and shared users effectively.