DDCalendarView 2.0

You want to add pod 'DDCalendarView', '~> 2.0' similar to the following to your Podfile:

target 'MyApp' do
  pod 'DDCalendarView', '~> 2.0'
end

Then run a pod install inside your terminal, or from CocoaPods.app.

Alternatively to give it a test run, run the command:

pod try DDCalendarView

a calendar view that looks like the ical view. It supports drag and drop
the 2 demos (objc and swift) show to use & customise it
it can easy be used to show and modify EKEvents - ios native calendar store and can be combined with EventKitUI
The view can be used for storyboarding and is IBDesignable and also partly IBInspectable so you can 'preview' it in IB
The view has extensive delegate & dataSource support so it feels like working with UITableViews. Have fun and please share additions you make

demo at cocoacontrols

cocoacontrols has a live demo of the control where you can try out d&d and see how it handles multiple events at the same time:
https://www.cocoacontrols.com/controls/ddcalendarview