How do I create a (collection?)view like the example I provided

There are multiple libraries for calendar e.g. JTAppleCalendar and some in awesome-ios list.

If you would like to make it from scratch you can do it programmatically the following way:

1. Create UIScrollView
2. Add a grid inside it: lines would be UIView’s with width/height of 1
3. Add UILabel’s with hours inside it
4. Add each appointment as UIView with UILabel inside it