There are 2 common reasons that make the apps not appearing on your store:
1. App location not detected
Some apps require a specific location on your store to display, and this location might not be automatically detected correctly.
You can manually set the app’s location by following this article.
2. App not enabled on the storefront
Check the app campaign and make sure it is active and enabled on the storefront.
If you need further assistance, our support team is ready to help.