# 腦珠算全教程(初階) vs Sobo Math

The clearest difference is price: Sobo Math at Free against 腦珠算全教程(初階)'s $8.99. Sobo Math also leads on update cadence (every 3 days vs every 20 months). 腦珠算全教程(初階)'s advantage is in-app purchases (none vs 2) and iOS requirement (8.0 vs 15.0). On ads and device support there is nothing between them.

Sobo Math is free to download; 腦珠算全教程(初階) costs $8.99 up front. Sobo Math sells 2 in-app purchases, starting at $9.99 per month. 腦珠算全教程(初階) asks for nothing beyond the download.

腦珠算全教程(初階) ships an update every 20 months, Sobo Math every 3 days. The most recent releases landed on September 18, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 腦珠算全教程(初階) | Sobo Math |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 3 days** |
| Size | 16 MB | 37 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hamster Force Multimedia Ltd.](https://appshunter.io/developer/443416476) | [kwok wai yeung](https://appshunter.io/developer/1887192726) |

## What reviewers say

### 腦珠算全教程(初階)

[App page](https://appshunter.io/ios/app/id1528952675)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sobo Math

[App page](https://appshunter.io/ios/app/sobo-math/id6785965928)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 小學數學大冒險 | $9.99 | per month |
| PRO Yearly | $69.99 | per year |


## Frequently asked questions

### Is 腦珠算全教程(初階) free?

腦珠算全教程(初階) costs $8.99, with no in-app purchases.

### Is Sobo Math free?

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

### Do 腦珠算全教程(初階) or Sobo Math have ads?

Neither 腦珠算全教程(初階) nor Sobo Math shows ads.

### Which is updated more often, 腦珠算全教程(初階) or Sobo Math?

腦珠算全教程(初階) ships an update every 20 months, and Sobo Math every 3 days. Most recently, 腦珠算全教程(初階) was updated on September 18, 2026 and Sobo Math on September 20, 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.*