# COMath vs CSO de Boog

The clearest difference is ads: CSO de Boog at none against COMath's shown. CSO de Boog also leads on update cadence (every 5 days vs monthly) and iOS requirement (11.0 vs 15.0). 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.

COMath ships an update monthly, CSO de Boog every 5 days. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | COMath | CSO de Boog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (45 ratings)](https://appshunter.io/ios/app/comath-math-practice-puzzles/id1438026503/reviews)** | — |
| Number of ratings | **45** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Ad-supported | — |
| Size | 89 MB | 11 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Jianfeng Wu](https://appshunter.io/developer/1435210283) | [Stichting  christelijk speciaal onderwijs Apeldoorn](https://appshunter.io/developer/1533235284) |

## What reviewers say

### COMath

[App page](https://appshunter.io/ios/app/comath-math-practice-puzzles/id1438026503)

This app acts as a personal math tutor, offering support and practice for arithmetic, algebra, and geometry. It provides over 100,000 word problems with step-by-step solutions and an equation solver to help students develop their math skills.

**Highlights:** Personalized math tutoring, Arithmetic practice (addition, subtraction, multiplication, division), Over 100,000 math word problems, Step-by-step equation solving, Algebra and geometry support, Practice without pencils

**Features:** Vision Pro support

**In-app purchases:** none


### CSO de Boog

[App page](https://appshunter.io/ios/app/cso-de-boog/id1533235282)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is COMath free?

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

### Is CSO de Boog free?

CSO de Boog is free to download, with no in-app purchases.

### Do COMath or CSO de Boog have ads?

COMath shows ads; CSO de Boog does not.

### Which is updated more often, COMath or CSO de Boog?

COMath ships an update monthly, and CSO de Boog every 5 days. Most recently, COMath was updated on October 7, 2026 and CSO de Boog on September 30, 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.*