This app does what it says - it periodically tests you on little facts that that you enter yourself to help you memorize them. And that pretty much works. But its a little quirky and can be frustrating - for instance, I set up a quiz to remember the license plate number for my new car, and every time it quizzes me it says I got the answer wrong, I try again and it says Im right - this has happened so often that Ive been EXTREMELY careful to double-check that I entered the correct answer, and it still ALWAYS says I get it wrong the first time, every time. Im not sure why this happens - maybe its too picky (an extra space in the answer, or a lower case letter instead of a capital? - though as far as I can tell neither was the case. Maybe it doesnt like hyphens? ). And the watch app is basically useless, it just displays an alert asking if you can remember the fact (so no need for an actual "app" since the watch can display any alert from any phone app without a dedicated "watch app") - it should allow you to try to speak the answer, or at least view the correct answer. In this case, it would actually be better as a plain alert, because answering the question on the watch (to dismiss the alert) causes it to skip the actual test on the phone - you have to remember to *not* answer the question on the watch if you want to test you memory in the app.