# Dive In! vs Math Key

The clearest difference is price: Dive In! at Free against Math Key's $1.99. Dive In! also leads on iOS requirement (9.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Dive In! is free to download; Math Key costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Dive In! | Math Key |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 57 MB | 1 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Intelligent Output Systems (PTY) Ltd](https://appshunter.io/developer/1534566987) | [1STGROUP PRIVATE LIMITED](https://appshunter.io/developer/6773183984) |

## What reviewers say

### Dive In!

[App page](https://appshunter.io/ios/app/dive-in/id1598895962)

**Features:** macOS Compatibility

**In-app purchases:** none


### Math Key

[App page](https://appshunter.io/ios/app/math-key/id6790252476)

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

**In-app purchases:** none


## Frequently asked questions

### Is Dive In! free?

Dive In! is free to download, with no in-app purchases.

### Is Math Key free?

Math Key costs $1.99, with no in-app purchases.

### Do Dive In! or Math Key have ads?

Neither Dive In! nor Math Key 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.*