The Breadcrumb app provides an efficient way to quickly navigate through SharePoint Sites.
https://store.office.com/my-breadcrumb-WA104330136.aspx?assetid=WA104330136
Provider’s website
The Help Desk App will help to improve service request process in your organization.
The App allows only actions available to a user depending on the user’s role and the current status of the request. The Admin user can specify the Manager and Performers group and modify email notification templates.
https://store.office.com/help-desk-WA104223008.aspx?assetid=WA104223008
Provider’s website