For students
12 courses written out unit by unit. Quizzes built from the notes you actually took. Explanations that stop and check you're still with them — then keep going. Free to try, no account, no card.
Tap one. Pip answers it right now — nothing to sign up for first.
An assistant you can hold to its word
Why students keep it open
Ask for help and you get the steps your class went too fast through — then a question back, to make sure the step landed before the next one arrives.
12 courses written out unit by unit — 471 topics, 10 of them AP exams. Say "Unit 4" and it knows exactly which Unit 4 you mean.
Drop in your notes, highlight what matters, and turn the page into a quiz or a flashcard deck — pointed straight at what you highlighted, not at whatever the page happened to say first.
The same Pip that drills your units writes the email, plans the trip, argues with your thesis and debugs the code. School is one lane, not the whole road.
The course count is read off the shipped curriculum every time this page loads. Try one right now — no account, no card.
Start from where you are
These are real prompts, shown in full. Tap one and it goes straight to Pip — you'll have an answer before you've decided whether to sign up.
Step by step
Pip breaks a concept into the steps your class went too fast through, checks that each one landed, and only then moves on. Ask it to write the essay and it writes the essay — and hands you the reasoning behind it, so the next one is yours.
Exam practice
12 courses are written out unit by unit — SAT and ACT, plus 10 AP exams. Ask about Unit 4 and Pip knows what Unit 4 is, because a person wrote it out. Here is every course, and how finished it is.
471 topics across 12 courses, with lessons written one at a time.
These are counted from the shipped courses when this page loads, not typed into the copy — so they cannot quietly drift away from the product. A course still being written stays on this list at whatever it really is, rather than waiting until it looks good. That is the only reason to believe the rows that read 100%.
AP®, Advanced Placement®, SAT® and ACT® are trademarks of the College Board and ACT, Inc. respectively. Neither endorses, sponsors, or is affiliated with CHUD.




Feedback
Answer a question and Pip tells you what you got right, where you slipped, and which misconception was underneath it — while the thought is still warm. Paste your own work and it says what's weak without quietly taking the pen off you.
After the exam
The same Pip that drills your units writes, plans and argues back. Résumés, scholarship essays, interview practice, the group project nobody else started — school is one lane, not the whole road.
Before you go
Short answers, no fine print — and every one of them links to the page that proves it.