# Number Challenge Game vs Pencil Sort 3D

The clearest difference is update cadence: Pencil Sort 3D at every 4 days against Number Challenge Game's every 12 months. 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.

Number Challenge Game ships an update every 12 months, Pencil Sort 3D every 4 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Number Challenge Game | Pencil Sort 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/pencil-sort-3d-color-match/id6756420249/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 12 months | **Every 4 days** |
| Size | 23 MB | 142 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Neethirajan Balachandran](https://appshunter.io/developer/1514892034) | [GamesTown](https://appshunter.io/developer/1694890040) |

## What reviewers say

### Number Challenge Game

[App page](https://appshunter.io/ios/app/number-challenge-game/id6447923676)

**Features:** Vision Pro support

**In-app purchases:** none


### Pencil Sort 3D

[App page](https://appshunter.io/ios/app/pencil-sort-3d-color-match/id6756420249)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Number Challenge Game free?

Number Challenge Game is free to download, with no in-app purchases.

### Is Pencil Sort 3D free?

Pencil Sort 3D is free to download, with no in-app purchases.

### Do Number Challenge Game or Pencil Sort 3D have ads?

Both Number Challenge Game and Pencil Sort 3D show ads.

### Which is updated more often, Number Challenge Game or Pencil Sort 3D?

Number Challenge Game ships an update every 12 months, and Pencil Sort 3D every 4 days. Most recently, Number Challenge Game was updated on October 25, 2026 and Pencil Sort 3D on October 24, 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.*