Remove app for SharePoint instances from a SharePoint site
Site owners can remove apps for SharePoint from their sites. Several circumstances might influence farm administrators and site owners to remove apps from their sites. For example, an app for SharePoint may no longer be needed or could become too much of a distraction to employees. The following procedures provide steps for removing (or uninstalling) an app.
When you remove an app, the data for that app will no longer be available.
Use the following procedure to remove an app from a SharePoint site.
To remove an app from a SharePoint site
Verify that the user account that is performing this procedure is a member of the Site owners group.
On the site, on the Settings menu, click View Site Contents.
In the Apps section, point to the app that you want to remove, click …, and then click Remove.
Click OK to confirm that you want to remove the app.