# CS Revision vs A

The clearest difference is in-app purchases: CS Revision at none against A's 3. A's advantage is iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. A sells 3 in-app purchases, starting at $3.99 per month. CS Revision asks for nothing beyond the download.

## The numbers

| Metric | CS Revision | A |
| --- | --- | --- |
| 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 | — |
| Monetization | Free | — |
| Size | 15 MB | 2 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Grigor Dochev](https://appshunter.io/developer/1459885994) | [MD Shahariar Nazim Joy](https://appshunter.io/developer/1893961943) |

## 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


### A

[App page](https://appshunter.io/ios/app/a-level-cs-revision/id6793444020)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $3.99 | per month |
| Yearly Premium | $12.99 | per year |
| Lifetime Access | $14.99 | one-time |


## Frequently asked questions

### Is CS Revision free?

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

### Is A free?

A is free to download, with in-app purchases available.

### Do CS Revision or A have ads?

Neither CS Revision nor A shows ads.

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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.*