# Unknown vs Math24

The clearest difference is ads: Math24 at none against Unknown's shown. Math24 also leads on monetization model (free vs ad-supported) and ratings volume (3 vs 1). Unknown's advantage is update cadence (fortnightly vs every 16 months) and rating (5.0 vs 4.7). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Unknown holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Unknown ships an update fortnightly, Math24 every 16 months. The most recent releases landed on October 9, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Unknown | Math24 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/unknown-tangram/id1510262744/reviews)** | [4.7 (3 ratings)](https://appshunter.io/ios/app/math24-3dpuzzle/id1574096364/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 16 months |
| Monetization | Ad-supported | **Free** |
| Size | 116 MB | 68 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [凯 王](https://appshunter.io/developer/1232081310) | [Shanghai Niwei Digital Technology Co., Ltd.](https://appshunter.io/developer/1563677609) |

## What reviewers say

### Unknown

[App page](https://appshunter.io/ios/app/unknown-tangram/id1510262744)

A captivating puzzle game where players draw lines to cut shapes and earn more graphics. It's designed to be simple, fun, and stimulate creative thinking.

**Highlights:** Draw line cuts, Earn more graphics, Simple gameplay, Fun and engaging, Stimulates thinking

**In-app purchases:** none


### Math24

[App page](https://appshunter.io/ios/app/math24-3dpuzzle/id1574096364)

This educational game challenges players to use four given numbers and basic arithmetic operations to reach the target number 24. It's designed to enhance mental arithmetic and logical reasoning skills through engaging puzzles.

**Highlights:** Solve 24-point math puzzles, Exercise mental arithmetic, Improve logic ability, Over 500 questions, Periodic question bank updates, 3D graphics

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Unknown free?

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

### Is Math24 free?

Math24 is free to download, with no in-app purchases.

### Which has better reviews, Unknown or Math24?

Unknown is rated higher. Unknown averages 5.0 out of 5 from 1 ratings, while Math24 averages 4.7 from 3 ratings.

### Do Unknown or Math24 have ads?

Unknown shows ads; Math24 does not.

### Which is updated more often, Unknown or Math24?

Unknown ships an update fortnightly, and Math24 every 16 months. Most recently, Unknown was updated on October 9, 2026 and Math24 on September 30, 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.*