CS Revision vs SST IB Maths
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/
SST IB Maths
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Practice for your IB Maths with this fun, engaging, and gamified app. Earn badges as you make progress and get instant, tailored feedback for any wrong answers you give, so you can learn from your mistakes! LICENSED APPLICATION END USER LICENSE AGREEMENT https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: CS Revision at none against SST IB Maths's 1. SST IB Maths's advantage is update cadence (every 11 days vs every 34 months) and iOS requirement (15.0 vs 26.0). On price, ads 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. SST IB Maths sells 1 in-app purchase, starting at $5.99 per month. CS Revision asks for nothing beyond the download.
CS Revision ships an update every 34 months, SST IB Maths every 11 days. Both last shipped on October 8, 2026.
| Parameter | CS Revision | SST IB Maths |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 34 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Grigor Dochev | Kikodo |
In-app purchases
CS Revision
No in-app purchases
SST IB Maths
- MEGA$5.991 Month






