Error code: 15056

The Appeon Workspace currently available on the Apple App store is build #1988. This build of the Appeon Workspace is only compatible with applications deployed with PowerServer 2019, which currently is only available in the Workgroup and Enterprise Editions of PowerServer.

Regardless, the Appeon Workspace that's available on the Apple App Store will always be updated to the latest version available, this will cause version mismatching to occur. This is because this workspace is for demonstration and is not meant for production use.

To guarantee the functionality of your application with the Appeon Workspace, you must package and distribute your own iOS or Android Workspace tailored to your own version of PowerServer.

The PowerServer Toolkit allows you to package your own Workspace.

Packaging a Workspace is simple, however, Packaging an iOS Workspace requires a number of extra steps due to Apple's closed environment's security restrictions.

Here is a document which details step-by-step instructions on packaging your own iOS Workspace:

http://support.appeon.com/index.php?/Knowledgebase/Article/View/108/15/how-to-package-and-distribute-your-own-appeon-workspace-to-the-apple-app-store