Removing an App requires the following steps:
Locate Browse in the qibb Catalog section in the navigation sidebar.
Select the app that you want to remove.
Select the Deployments to tab in the catalog app detail view.
Locate the app deployment you want to delete and select the Delete button.
Confirm the deletion process by selecting the Delete button in the pop-up window.
After a few seconds, the app will be completely removed from qibb.