• Please make sure few things:

1. You have selected same data storage in both devices, you can check it from:
   App Settings >> data storage.
2. You are using the same iCloud id in both devices.

• If all things are proper and still persist with the same problem then try by restarting your device in which you are facing sync problem.

• Please send us an email from share feedback so we get all required info from there.
  You can get share feedback from: app settings >> share feedback.

- Moon Invoice