On the digital ACT, the center gives you scratch paper. You do not write in a booklet, and you do not bring your own paper. Paper testing is the opposite: you mark the booklet, and scratch paper is not part of the setup. Format differences are in digital or paper ACT.
What you actually get
The proctor hands out paper and collects it before you leave. Use it for algebra, for a quick diagram, and for a list of questions you want to revisit. You cannot take it with you, and you cannot bring a stack from home. What you are allowed to carry in is in what to bring to the ACT.
What still lives on the screen
Highlighting and flagging stay in the testing app. A handheld calculator is separate from the scratch paper, and you may still bring one. That is in bringing a calculator on the digital ACT. The on-screen tools are in digital ACT tools.
The bottom line
Use the paper they give you. Leave your own notebook at home, and do not expect to keep the sheet.
Start practicing
Start with a free diagnostic, then drill your weak spots with 15-question quizzes and track how you're doing across Reading, English, and Math. Compare plans whenever you're ready to go further.
This article offers general ACT prep guidance. The ACT can change from year to year, including its format, scoring, policies, test dates, and fees, so always confirm the latest details on the official ACT website at act.org before you make decisions. ACT® is a registered trademark of ACT, Inc. thirty-six is not affiliated with, endorsed by, or sponsored by ACT.