Column Permission App enables administrator to set columns invisible or read-only in a SharePoint Online list.

Aggregate and manage events from multiple calendars (SharePoint Online calendar, Group calendar and Personal calendar) in one place.

Excel Import App enables users to import data from an Excel spreadsheet file into a SharePoint Online list.

Batch Check In App enables end users to check in a group of document and edit their properties at once in Office 365 or SharePoint online.