AP CSP — Free Curriculum, Practice Exams & Create Task
Free AP Computer Science Principles course: 64 lessons, 5 mock exams, 300+ MCQs, and Create Task practice. Aligned to the 2025-26 CED. From CS++, founded by a 20+ year AP CS teacher.
Common questions
Is the CS++ AP CSP course free?
Yes. All 64 AP CSP lessons are free with a CS++ account, along with the first mock exam and the free tools. An optional one-time $9.99 lifetime membership unlocks mock exams 2-5, the full question banks, and AI feedback. There is no subscription.
Is the course aligned to the 2025-26 College Board CED?
Yes. The course follows the current AP Computer Science Principles Course and Exam Description, covering all five Big Ideas: Creative Development (CRD), Data (DAT), Algorithms and Programming (AAP), Computing Systems and Networks (CSN), and Impact of Computing (IOC).
How many practice exams and questions are included?
There are 5 full-length mock exams of 70 questions each that mirror the real end-of-course exam, plus more than 300 multiple-choice practice questions you can drill by Big Idea. Mock exam 1 is free; the rest unlock with membership.
Does it help with the Create Performance Task?
Yes. A dedicated Create Task guide breaks down the rubric, shows scored example projects, and walks through the written-response prompts and code-artifact requirements so you can build a strong submission.
Who built the course and do I need to install anything?
It was written by the founder of CS++, an AP Computer Science teacher with 20+ years in the classroom. Everything runs in your browser with no install, which makes it a good fit for Chromebooks and school devices.