Against the clock
Timed exam simulation
The point of a timed sitting is not the score, it is the budget: 45 minutes over 40 items is a little over a minute each, which is about as long as you get to find a callout on a real set before somebody is waiting on you. The clock runs on the wall clock, so it keeps going if you leave the tab.
The exam simulation is part of Premium
40 items in 45 minutes, stratified across the lessons the same way the daily drill is, and reviewed item by item at the end. The daily drill is free forever, and so is every sheet, every reference page and every guide.