# Hi vs Mastery

The clearest difference is in-app purchases: Mastery at none against Hi's 1. Hi's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Hi sells 1 in-app purchase, starting at $4.99 per year. Mastery asks for nothing beyond the download.

## The numbers

| Metric | Hi | Mastery |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | — | Every 11 days |
| Size | 47 MB | 30 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dotun Aboyeji](https://appshunter.io/developer/1830481350) | [ismail parlak](https://appshunter.io/developer/1736998837) |

## What reviewers say

### Hi

[App page](https://appshunter.io/ios/app/hi-score/id6761297524)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full JAMB Access | $4.99 | per year |


### Mastery

[App page](https://appshunter.io/ios/app/mastery-ai-notes-generator/id6767202017)

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

**In-app purchases:** none


## Frequently asked questions

### Is Hi free?

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

### Is Mastery free?

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

### Do Hi or Mastery have ads?

Mastery shows ads; Hi does not.

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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.*