# 3D Magic Ruler vs Little Why?

The clearest difference is update cadence: Little Why? at every 3 weeks against 3D Magic Ruler's every 2 months. 3D Magic Ruler's advantage is iOS requirement (9.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 3D Magic Ruler sells 6 one-off in-app purchases and Little Why? sells 2 in-app purchases, starting at $1.49 per 7 days. Whichever you choose, the download price is not the number that matters.

3D Magic Ruler ships an update every 2 months, Little Why? every 3 weeks. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 3D Magic Ruler | Little Why? |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (7 ratings)](https://appshunter.io/ios/app/3d-magic-ruler/id1443058126/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 79 MB | 62 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [广东群宇互动科技有限公司](https://appshunter.io/developer/1019985641) | [Iana Lando](https://appshunter.io/developer/1896676433) |

## What reviewers say

### 3D Magic Ruler

[App page](https://appshunter.io/ios/app/3d-magic-ruler/id1443058126)

Engage in a magical puzzle experience with this application. It offers an entertaining and captivating way to interact with puzzles, making them more enjoyable.

**Highlights:** 3D magic puzzle gameplay, Enhanced puzzle fun, Interactive puzzle experience, Educational entertainment

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 500beans | $0.99 | one-time |
| 1000beans | $1.99 | one-time |
| 1500beans | $2.99 | one-time |
| 2500beans | $4.99 | one-time |
| 5000beans | $9.99 | one-time |
| 25000beans | $49.99 | one-time |


### Little Why?

[App page](https://appshunter.io/ios/app/little-why/id6769651064)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.49 | per 7 days |
| Yearly | $24.99 | per year |


## Frequently asked questions

### Is 3D Magic Ruler free?

3D Magic Ruler is free to download, with in-app purchases available.

### Is Little Why? free?

Little Why? is free to download, with in-app purchases available.

### Do 3D Magic Ruler or Little Why? have ads?

Neither 3D Magic Ruler nor Little Why? shows ads.

### Which is updated more often, 3D Magic Ruler or Little Why??

3D Magic Ruler ships an update every 2 months, and Little Why? every 3 weeks. Most recently, 3D Magic Ruler was updated on October 20, 2026 and Little Why? on October 8, 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.*