I applied online. The process took 1 day. I interviewed at Studypool in Sept 2022
Interview
At first you need to fill out a fairly simple form. Then you are asked to do a 200-500 long essay on some topic in the area that you went for. After that there are two more questions that you need to deliver. you can send the results in docx, pdf and such formats.
Interview questions [1]
Question 1
Essay: Write about one of your favorite theorems in Mathematics.