# CS Revision vs A

The clearest difference is ads: CS Revision at none against A's shown. CS Revision also leads on monetization model (free vs ad-supported). A's advantage is update cadence (every 16 months vs every 34 months) and iOS requirement (10.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

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, A every 16 months. The most recent releases landed on October 8, 2026 and September 29, 2026 respectively.

## 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** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 34 months | **Every 16 months** |
| Monetization | **Free** | Ad-supported |
| Size | 15 MB | 20 MB |
| Requires iOS | 26.0 | **10.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Grigor Dochev](https://appshunter.io/developer/1459885994) | [Saman Wijenayake](https://appshunter.io/developer/1553615257) |

## 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-physics-flashcards/id1621042662)

This app provides flashcards for A-Level Physics revision, covering all topics for various exam boards. It helps users learn physics more efficiently through topic-based or comprehensive study sessions.

**Highlights:** A-Level Physics flashcards, Covers all exam board topics, Topic-wise learning, Comprehensive study sessions, Daily revision tool

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

**In-app purchases:** none


## 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 no in-app purchases.

### Do CS Revision or A have ads?

A shows ads; CS Revision does not.

### Which is updated more often, CS Revision or A?

CS Revision ships an update every 34 months, and A every 16 months. Most recently, CS Revision was updated on October 8, 2026 and A on September 29, 2026.

---

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