CS Wizard

Everything for OCR A-Level Computer Science (H446) in one app: notes, flashcards, exam questions, timed mock exams, revision games and step-by-step tools. Written by an A-Level Computer Science teacher, and all of it works offline.

REVISE
• Clear notes for all 24 specification topics, from processors to algorithms
• 378 flashcards, with definitions written around what the mark schemes credit
• Search every topic, term and question in one place

REMEMBER
• Daily Deck: a short set of cards each day, chosen by spaced repetition so each term comes back just before you would forget it
• Rate your confidence and watch every topic move from Unfamiliar to Mastered
• Quick Review goes straight to your weakest terms
• Flashcards can be read aloud, and an optional daily reminder keeps your streak going

PRACTISE FOR THE EXAM
• Nearly 300 past-paper and practice questions, each with its mark scheme
• Mark your own answers and see which topics are costing you marks
• Mock Exam: a timed paper of 20, 70 or 140 marks built from your weaker topics, then marked question by question with a breakdown by topic

SIX GAMES THAT MAKE IT STICK
• Binary Blitz: convert between binary, denary and hexadecimal against the clock
• Memory Pairs and Match: pair each term with its definition
• Speed Round: does this definition match this term? Sixty seconds
• Order It: put the steps of a process in the right order
• Sort It: drop each item into the group it belongs to

19 TOOLS THAT SHOW THE WORKING
Step through the methods the exam asks you to trace, one line at a time:
• Processor: the fetch-decode-execute cycle and scheduling
• Binary: denary, binary and hexadecimal conversion, two's complement, addition and subtraction, floating point, shifts and masks
• Data structures: stacks and queues, binary search trees, hash tables
• Algorithms: linear and binary search, bubble, insertion, merge and quick sort, Dijkstra's shortest path
• Logic: Karnaugh maps and truth tables
• Compression: run length encoding and dictionary coding

TRACK YOUR PROGRESS
• Confidence for every topic and across both papers
• Streaks, activity and your exam question scores
• A countdown to Paper 1 and Paper 2

MADE FOR IPHONE AND IPAD
• Real iPad layouts: sidebar, two columns, keyboard shortcuts and pointer support
• Portrait and landscape
• Find any term from Home Screen search, start your Daily Deck with Siri, or press and hold the app icon for shortcuts

NO SUBSCRIPTION, NO ADS, NO ACCOUNT
Buy it once. There is nothing to sign up for, and your progress stays on your device.

The companion app to compsciwizard.com.

CS Wizard is an independent revision app. It is not affiliated with or endorsed by OCR.