# Mental Models vs Assessment Ready

The clearest difference is in-app purchases: Assessment Ready at none against Mental Models's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Mental Models sells 1 one-off in-app purchase. Assessment Ready asks for nothing beyond the download.

## The numbers

| Metric | Mental Models | Assessment Ready |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 53 MB | 60 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christos Tsavas](https://appshunter.io/developer/1887557969) | [Corri Jones](https://appshunter.io/developer/1730911718) |

## What reviewers say

### Mental Models

[App page](https://appshunter.io/ios/app/mental-models-mind-models/id6761058477)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $6.99 | one-time |


### Assessment Ready

[App page](https://appshunter.io/ios/app/assessment-ready-test-prep/id6809830013)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mental Models free?

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

### Is Assessment Ready free?

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

### Do Mental Models or Assessment Ready have ads?

Neither Mental Models nor Assessment Ready 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.*