If you want a calendar view that shows only days with scheduled events, there are a number of options you can use.
For example, perhaps you use Teamup to organize events for a club or hobby group. All events are on weekends, so you don't need to see weekdays. The would only show the events you have created, creating a very condensed view of all the Sunday events.
Both the Agenda and List view show events in a list, rather than on a grid. So you will see a listing of all scheduled events. You can choose to show details, which will display the event description, images, etc., in the list of events.
Table view is a spreadsheet-like layout, showing each event in its own row. You can hide or rearrange columns.
Scheduler view is unique in that the sub-calendars are listed as columns and you have a lot of control over the date range you'd like to see. Here's a view of just one sub-calendar in Scheduler view, with one weekly event. The date range is set to multiple weeks.
You can also use the option to hide empty columns in Scheduler view so calendar without events are automatically hidden.