You can delete apps that you have delete rights to.
Do the following:
Select Apps on the QMC start page or from the StartS drop-down menu to display the overview.
Select the apps that you want to delete.
- Click Delete in the action bar.A Delete dialog is displayed.
Note: When an app is deleted, the content in the app specific folder %ProgramData%\Qlik\Sense\Repository\AppContent\<App ID> is deleted along with the app. Generic content that is not specific to a single app, such as extensions, data connections, and items in Content libraries, is not deleted.