# CS Revision vs SST IB Maths

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.

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.

## The numbers

| Metric | CS Revision | SST IB Maths |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/cs-revision/id1555862527/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 11 days** |
| Monetization | Free | — |
| Size | 15 MB | 30 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Grigor Dochev](https://appshunter.io/developer/1459885994) | [Kikodo](https://appshunter.io/developer/1647993863) |

## What reviewers say

### CS Revision

[App page](https://appshunter.io/ios/app/cs-revision/id1555862527)

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.

**Highlights:** Revision notes, Code snippets and diagrams, Progress tracking, MCQ and exam-style practice questions, Discussion forum, Friend motivation features

**Features:** macOS Compatibility, Family Sharing

**In-app purchases:** none


### SST IB Maths

[App page](https://appshunter.io/ios/app/sst-ib-maths/id6444309821)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MEGA | $5.99 | per month |


## Frequently asked questions

### Is CS Revision free?

CS Revision is free to download, with no in-app purchases.

### Is SST IB Maths free?

SST IB Maths is free to download, with in-app purchases available.

### Do CS Revision or SST IB Maths have ads?

Neither CS Revision nor SST IB Maths shows ads.

### Which is updated more often, CS Revision or SST IB Maths?

CS Revision ships an update every 34 months, and SST IB Maths every 11 days. Most recently, CS Revision was updated on October 8, 2026 and SST IB Maths on October 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*