# Less Math 算數 (校園版) vs Sobo Math

The clearest difference is in-app purchases: Less Math 算數 (校園版) at none against Sobo Math's 2. Less Math 算數 (校園版) also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sobo Math sells 2 in-app purchases, starting at $9.99 per month. Less Math 算數 (校園版) asks for nothing beyond the download.

Less Math 算數 (校園版) ships an update every 5 days, Sobo Math every 4 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Less Math 算數 (校園版) | Sobo Math |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 4 days** |
| Size | 69 MB | 28 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RiteX Ai Technologies Limited](https://appshunter.io/developer/1558355552) | [kwok wai yeung](https://appshunter.io/developer/1887192726) |

## What reviewers say

### Less Math 算數 (校園版)

[App page](https://appshunter.io/ios/app/less-math/id6496284077)

**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 Less Math 算數 (校園版) free?

Less Math 算數 (校園版) is free to download, with no in-app purchases.

### Is Sobo Math free?

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

### Do Less Math 算數 (校園版) or Sobo Math have ads?

Neither Less Math 算數 (校園版) nor Sobo Math shows ads.

### Which is updated more often, Less Math 算數 (校園版) or Sobo Math?

Less Math 算數 (校園版) ships an update every 5 days, and Sobo Math every 4 days. Most recently, Less Math 算數 (校園版) was updated on October 25, 2026 and Sobo Math on October 31, 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.*