All of your activities are ordered and displayed extremely nicely and intuitively on the Calendar tab (calendar icon) according to their date and time.
You can view all of your automagically recorded check-ins or check-outs in there as well.
There is also an easy to navigate date button (calendar icon) to go to a specific date, used preferably in cases when you want to view your activities on a date long time before or after today.
You can easily tap on any activity there to view the activity's details and delete, edit or complete it.
You can also easily create a new activity from your calendar by simply tapping the add button (plus icon) and adding all the activity's contents thereafter.