# 24 Math Master vs Fossil Deck

The clearest difference is in-app purchases: 24 Math Master at none against Fossil Deck's 6. Fossil Deck's advantage is iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Fossil Deck sells 6 one-off in-app purchases. 24 Math Master asks for nothing beyond the download.

## The numbers

| Metric | 24 Math Master | Fossil Deck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Size | 1 MB | 86 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jingling Zhu](https://appshunter.io/developer/1632188995) | [Mark Opanasiuk](https://appshunter.io/developer/6785112122) |

## What reviewers say

### 24 Math Master

[App page](https://appshunter.io/ios/app/24-math-master/id6758396505)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fossil Deck

[App page](https://appshunter.io/ios/app/fossil-deck-dino-puzzles/id6787745267)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cretaceous Predators Deck | $1.99 | one-time |
| Jurassic Giants Deck | $1.99 | one-time |
| Armored Dinosaurs Deck | $1.99 | one-time |
| Horned Dinosaurs Deck | $1.99 | one-time |
| Feathered & Fast Deck | $1.99 | one-time |
| Unlock All Dinos | $19.99 | one-time |


## Frequently asked questions

### Is 24 Math Master free?

24 Math Master is free to download, with no in-app purchases.

### Is Fossil Deck free?

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

### Do 24 Math Master or Fossil Deck have ads?

Neither 24 Math Master nor Fossil Deck shows 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.*