# CodeMath vs G123

The clearest difference is in-app purchases: G123 at none against CodeMath's 1. G123 also leads on update cadence (every 5 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CodeMath sells 1 one-off in-app purchase. G123 asks for nothing beyond the download.

CodeMath ships an update every 2 weeks, G123 every 5 days. The most recent releases landed on September 30, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | CodeMath | G123 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/codemath-learn-math-together/id6448272564/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 67 MB | 66 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nguyen Van Huu](https://appshunter.io/developer/1649904386) | [HAI DANG NGO](https://appshunter.io/developer/6796242553) |

## What reviewers say

### CodeMath

[App page](https://appshunter.io/ios/app/codemath-learn-math-together/id6448272564)

This app offers free online Olympic Math courses for elementary students, covering various international competitions. It features engaging video lessons, practice tests, and exam resources with solutions. Students can interact with teachers and parents can track progress.

**Highlights:** Olympic Math courses for grades 1-5, Video lessons and practice questions, Comprehensive practice tests, Exam resources and solutions, Teacher interaction and support, Parental progress tracking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Luyện thi Toán ASMO khối 1 | $22.99 | one-time |


### G123

[App page](https://appshunter.io/ios/app/g123/id6755713426)

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

**In-app purchases:** none


## Frequently asked questions

### Is CodeMath free?

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

### Is G123 free?

G123 is free to download, with no in-app purchases.

### Do CodeMath or G123 have ads?

Neither CodeMath nor G123 shows ads.

### Which is updated more often, CodeMath or G123?

CodeMath ships an update every 2 weeks, and G123 every 5 days. Most recently, CodeMath was updated on September 30, 2026 and G123 on October 5, 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.*