# NumChain vs Pencil Case Sort

The clearest difference is in-app purchases: Pencil Case Sort at none against NumChain's 5. Pencil Case Sort also leads on iOS requirement (12.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. NumChain sells 5 one-off in-app purchases. Pencil Case Sort asks for nothing beyond the download.

## The numbers

| Metric | NumChain | Pencil Case Sort |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 143 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [J.Benito Pereira](https://appshunter.io/developer/1267263346) | [3A YAPIM VE YAZILIM DANISMANLIK LIMITED SIRKETI](https://appshunter.io/developer/1493049868) |

## What reviewers say

### NumChain

[App page](https://appshunter.io/ios/app/numchain-math-number-puzzle/id6670266485)

This number puzzle game sharpens mental math skills through engaging gameplay. Connect numbers to form chains, sums, and products across three distinct modes. Compete globally, earn achievements, and enjoy a clean, intuitive interface designed for all ages.

**Highlights:** Three game modes: Chains, Sums, Multiplication, Global leaderboards and achievements, Hint system for challenging puzzles, Intuitive interface and clean design, Optimized for iPhone and iPad, Develops mental calculation and strategic thinking

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 25 Points | $0.99 | one-time |
| 53 Points | $1.99 | one-time |
| Ads Remove | $2.99 | one-time |
| 85 Points | $2.99 | one-time |
| 110 Points | $3.99 | one-time |


### Pencil Case Sort

[App page](https://appshunter.io/ios/app/pencil-case-sort/id6749851031)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NumChain free?

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

### Is Pencil Case Sort free?

Pencil Case Sort is free to download, with no in-app purchases.

### Do NumChain or Pencil Case Sort have ads?

Both NumChain and Pencil Case Sort show ads.

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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.*