AskZ. Your teacher, 24/7.
Stuck on a topic at midnight? Not sure if your pseudocode is right? Thinking about joining ZAK's classes? AskZ explains, marks and quizzes you — the way ZAK would in class — and knows every corner of this site.
AskZ — your 24/7 CS tutor
Meet AskZKnows this site
Every topic, tool, quiz and past paper on cswithzak.com — and ZAK's notes, the syllabus and mark schemes behind them.
Mark-scheme mindset
Ask it to mark your answer like an examiner and tell you which marks you missed.
Voice & photos
Need to speak your question or upload a photo of your work? Use the full AskZ app. askzbot.com →
Safe for students
Computer Science only, safety filters built in. No sign-up needed.
AskZ can make mistakes — always check against your notes and the mark scheme. Built by ByteCorp. Textbook material is used for accuracy only and is never reproduced. This page is the Computer Science AskZ — for every other subject, on any exam board, visit askzbot.com.
Cambridge · Edexcel · AQA · OCR · WJEC Eduqas · CCEA · IB
Every board.
Every subject.
Ask Z.
Revision that knows your syllabus. AskZ began here with Computer Science; at askzbot.com the same tutor covers every subject on seven boards, with the real paper structure and marking that follows the mark scheme.
45 days free. No card.Then Free forever, or pay per subject for the ones you sit.
Sitting Cambridge Computer Science? It is complimentary, in full, right here — start on cswithzak.com.
Pick your syllabus
Choose your board and the exact code you are entered for. Series, syllabus years and the official PDF come with it.
Practise with real paper structure
Papers, command words, mark tags like [3] and timings match the exam, so nothing on the day looks new.
AskZ marks and explains
Type or photograph an answer. AskZ marks it against the mark scheme and shows the marks you lost and why.
For Students
Pick the subjects you sit this session. They're yours until the last paper.
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For Parents
One Family plan pools subjects across up to four students — every board, one bill.
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For Tutors
Your students' syllabus, papers and marking in one place, so lessons start from the mark scheme.
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For Schools
Campus seats give every student every subject, with the real paper structure for every board you offer.
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askzbot.com is the AskZ platform for every board and every subject. This page is AskZ for Cambridge Computer Science — free, no sign-up.