CS Revision vs ARC Geography
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CS Revision
This app provides revision notes, code snippets, and diagrams for International Baccalaureate Computer Science students. It includes practice questions, progress tracking, and a forum for discussion and motivation.
- Revision notes
- Code snippets and diagrams
- Progress tracking
- MCQ and exam-style practice questions
- Discussion forum
- Friend motivation features
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CS Revision helps you revise IB Diploma Computer Science in one focused place: learn a topic, practise it, then review what you got wrong until it sticks. LEARN EVERY TOPIC STEP BY STEP • 27 structured topics across Theme A, Theme B and the course components • Clear explanations, key ideas, worked examples and tables • Code examples in Python or Java, with syntax highlighting. Choose your language once. • Standard Level and Higher Level: HL-only material is labelled and can be hidden • Search, filter and bookmark topics PRACTISE WITH ORIGINAL QUESTIONS • Over 1,100 original practice questions written for this app • Single-answer, multiple-answer, code-output and short-answer questions • Instant feedback with an explanation for every question • Quick practice, topic practice and timed Theme A and Theme B practice sets • Report any answer that looks wrong straight from the question REVIEW AT THE RIGHT TIME • A spaced-review queue brings back questions just before you are likely to forget them • Progress charts, topic mastery and your weakest topics at a glance • A Due Review widget for your Home Screen • Optional daily practice reminders at a time you choose ASK THE QUESTION COACH Ask a follow-up about the lesson or question you are studying. The Question Coach uses Apple Intelligence on your device, so your questions are not sent to the developer or saved. It needs an iPhone or iPad that supports Apple Intelligence, with Apple Intelligence turned on. Responses are generated and can contain mistakes, so check them against the lesson. PRIVATE BY DESIGN • No account or sign-in • Your study profile and progress can sync between your iPhone and iPad through your own private iCloud • No advertising, no tracking and no third-party analytics • Export your progress or reset it at any time FREE AND FULL ACCESS Free: a selection of lessons and practice questions with explanations, up to three due review questions at a time, and one Question Coach conversation. Full Access (one-time in-app purchase): every lesson and question, unlimited practice and review, timed practice sets and unlimited Question Coach conversations. It is a single purchase with no subscription, and you can restore it on your other devices. CS Revision was developed independently from, and is not endorsed by, the International Baccalaureate (IB). International Baccalaureate and IB are registered trademarks of the International Baccalaureate Organization. All lessons and questions are original study material. They are not official IB examination questions or markschemes. Use the app alongside your teacher's guidance and the official course materials from your school. Terms of Use: https://grigor-dochev.github.io/ib-cs-revision-help/terms/
ARC Geography
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*** ARC GEOGRAPHY APP IS COMPATIBLE WITH AUGMENTED CLASSROOM ONLY ARC Geography App features 3D models of countries and includes information on geographical peculiarities, political structures, animals, plants and heritage sites, the planet Earth and more. The App engages students in a new way of seeing and exploring the world, and all its wonders through an interactive learning experience of a real-world environment. ARC Geography is one of the Augmented Classroom Apps. It helps educators facilitate interactive and engaging lessons to students in class or remotely in a multi-user Augmented Reality environment. Students can interact with pre-designed content and participate in single-user or collaborative activities. Subject: Science, Geography, Social Studies, History, Biology Strands covered: human environments, natural environments, environmental awareness, space, location, world around us, history and discovery. ARC Geography contents include: - World’s political map with flags and facts (countries, capitals) - Weather, seasons, and climate in different countries - Understanding of planet Earth, its shape, and day & night cycles - Understand and apply the principles of a healthy diet (feed the animal activity) - Plants: understand where food comes from - Weather & plant: Understand seasonality, and know where and how a variety of ingredients are grown - Earth’s ecosystem & structure - World Heritage - Animals, insects & mini- beasts: All living things and their habitats - Water world & underwater animals - Time zones - Magnetic fields - Relationships in an ecosystem - Dinosaurs - many individual and team challenges to deepen and strengthen the subject understanding, and much more... "
Screenshots
Verdict
The clearest difference is update cadence: ARC Geography at every 2 months against CS Revision's every 34 months. ARC Geography also leads on iOS requirement (12.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CS Revision ships an update every 34 months, ARC Geography every 2 months. Both last shipped on November 3, 2026.
| Parameter | CS Revision | ARC Geography |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 34 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 421 MB |
| Age rating | 4+ | 4+ |
| Developer | Grigor Dochev | CleverBooks Limited |
In-app purchases
CS Revision
No in-app purchases
ARC Geography
No in-app purchases









