Data are not updated when changes are made on my iOS device

1. Your data or its changes may not yet have been uploaded to iCloud.

2. Confirm that you’re connected to the Internet. Test your connection by opening apple.com in Safari.

3. Make sure that you’re using the latest version of iOS and AppBox Pro.

If your data  in iCloud aren’t the same on all your devices you can reset your iCloud documents and data for all apps. 

Please, see the Apple Support article.