# CS Revision vs CsWithSaya

The clearest difference is update cadence: CsWithSaya at every 3 weeks against CS Revision's every 34 months. CsWithSaya also leads on iOS requirement (15.1 vs 26.0). On price, ads, 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, CsWithSaya every 3 weeks. The most recent releases landed on November 3, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | CS Revision | CsWithSaya |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 15 MB | 23 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Grigor Dochev](https://appshunter.io/developer/1459885994) | [Muhammad Afham](https://appshunter.io/developer/1704544734) |

## 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


### CsWithSaya

[App page](https://appshunter.io/ios/app/cswithsaya/id6463507243)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CS Revision free?

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

### Is CsWithSaya free?

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

### Do CS Revision or CsWithSaya have ads?

Neither CS Revision nor CsWithSaya shows ads.

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

CS Revision ships an update every 34 months, and CsWithSaya every 3 weeks. Most recently, CS Revision was updated on November 3, 2026 and CsWithSaya on October 9, 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.*