Same question set, separate lanes. Nobody waits for anybody: answer as fast and as many as you can before the timer hits zero. Scores update live on both screens.
You'll get a 4-letter code to send your friend.
Works with chapter-wise PYQ PDFs laid out like AcadXL's: each question ends with a tag such as [4 marks, −1 for a wrong answer] · 2023 (30 Jan, Shift 1) and the answer key is on the last page. Everything runs inside your browser; the PDF is never uploaded. A 60-page PDF takes about 3–6 minutes.
Send your friend this website link and the code. They tap Join and enter it. Either of you can press Start.