# Mental Models vs Case Math Trainer

The clearest difference is in-app purchases: Case Math Trainer at none against Mental Models's 1. Mental Models's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price and ads there is nothing between them.

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

## The numbers

| Metric | Mental Models | Case Math Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/case-math-trainer/id6794442816/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | — | Free |
| Size | 53 MB | 3 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Christos Tsavas](https://appshunter.io/developer/1887557969) | [James Holm](https://appshunter.io/developer/6794442818) |

## 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 |


### Case Math Trainer

[App page](https://appshunter.io/ios/app/case-math-trainer/id6794442816)

Practice complex arithmetic and problem-solving skills under timed conditions, simulating real-world interview scenarios. Focuses on managing large numbers, identifying setup errors, and interpreting data from various charts. Includes spoken answer practice and adaptive training based on your performance.

**Highlights:** Timed arithmetic sprints with business magnitudes, Zero management drills, Word problems with separate formula scoring, Exhibit reading from charts, Spoken answer practice with speech recognition, Adaptive training based on weaknesses, Private by design, no account or tracking

**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 Case Math Trainer free?

Case Math Trainer is free to download, with no in-app purchases.

### Do Mental Models or Case Math Trainer have ads?

Neither Mental Models nor Case Math Trainer 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.*