# Mental Math vs Kids Shelf

The clearest difference is in-app purchases: Kids Shelf at none against Mental Math's 3. Kids Shelf also leads on iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Mental Math sells 3 in-app purchases, starting at $2.99 per 7 days. Kids Shelf asks for nothing beyond the download.

## The numbers

| Metric | Mental Math | Kids Shelf |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mental-math-quick-math-tests/id6757763893/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 11 days |
| Monetization | Freemium | — |
| Size | 56 MB | 77 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Heat Studio LLC](https://appshunter.io/developer/1766372656) | [Vibhu Bhutani](https://appshunter.io/developer/1871810577) |

## What reviewers say

### Mental Math

[App page](https://appshunter.io/ios/app/mental-math-quick-math-tests/id6757763893)

Enhance your mental math skills for consulting, investment banking, and quant interviews. Practice realistic drills, track your progress with streaks, and build confidence with adaptive exercises and exam-style sessions.

**Highlights:** Adaptive drills, Case math chains, Estimation sandbox, Lightning rounds, Interview mode, Exam-style sessions, Career-specific prep

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Career Pass - Weekly | $2.99 | per 7 days |
| Career Pass - Monthly | $7.99 | per month |
| Career Pass - Annual | $24.99 | per year |


### Kids Shelf

[App page](https://appshunter.io/ios/app/kids-shelf/id6758529389)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mental Math free?

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

### Is Kids Shelf free?

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

### Do Mental Math or Kids Shelf have ads?

Neither Mental Math nor Kids Shelf 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.*