I applied online. The process took 1 day. I interviewed at Yup (Topeka, KS) in May 2019
Interview
Online math test & online teaching test. Math test was multiple choice. Using the Internet & other tools was allowed but not helpful unless you already had math knowledge.
I applied online. I interviewed at Yup in Jan 2022
Interview
You have to take two exams a Math and a Teaching exam, the Math exam is hard but you can pass it if you know Math, in any case I feel that the teaching exam is harder because the questions are a little bit more ambiguous.