# Sorting Stones vs KidX Classbox

The clearest difference is update cadence: KidX Classbox at every 2 months against Sorting Stones's every 38 months. KidX Classbox also leads on iOS requirement (9.0 vs 13.0). 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.

Sorting Stones ships an update every 38 months, KidX Classbox every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Sorting Stones | KidX Classbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (2 ratings)](https://appshunter.io/ios/app/kidx-classbox/id1563327372/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 15 MB | 82 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yellow Door Ltd](https://appshunter.io/developer/992076525) | [SUZHOU COURTESY EDUCATION TECHNOLOGY CO., LTD](https://appshunter.io/developer/1563327374) |

## What reviewers say

### Sorting Stones

[App page](https://appshunter.io/ios/app/sorting-stones-us/id1488727740)

**Features:** macOS Compatibility

**In-app purchases:** none


### KidX Classbox

[App page](https://appshunter.io/ios/app/kidx-classbox/id1563327372)

This interactive educational toy combines physical play with online learning for children aged 3-8. It teaches fundamental math and logic skills using Montessori and Brain/Logic training methods. The app allows children to learn anytime, anywhere, bridging offline activities with online lessons.

**Highlights:** Montessori-based math education, Brain and Logic training, Interactive online lessons, Offline play integration, Suitable for ages 3-8, Tablet-based learning

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sorting Stones free?

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

### Is KidX Classbox free?

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

### Do Sorting Stones or KidX Classbox have ads?

Neither Sorting Stones nor KidX Classbox shows ads.

### Which is updated more often, Sorting Stones or KidX Classbox?

Sorting Stones ships an update every 38 months, and KidX Classbox every 2 months. Most recently, Sorting Stones was updated on November 3, 2026 and KidX Classbox on November 3, 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.*