# StepByStories vs Mental Math

The clearest difference is in-app purchases: Mental Math at none against StepByStories's 6. StepByStories's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. StepByStories sells 6 in-app purchases, starting at $1.59 per 7 days. Mental Math asks for nothing beyond the download.

## The numbers

| Metric | StepByStories | Mental Math |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Size | 56 MB | 2 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Eduardo Gandelman](https://appshunter.io/developer/1896153883) | [Denis Korneev](https://appshunter.io/developer/6819797051) |

## What reviewers say

### StepByStories

[App page](https://appshunter.io/ios/app/stepbystories/id6765990036)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Affiliate Weekly | $1.59 | per 7 days |
| Stepbystories Premium Weekly | $1.99 | per 7 days |
| Monthly | $4.99 | per month |
| Affiliate Monthly | $4.99 | per month |
| Yearly | $44.99 | per year |
| Affiliate Yearly | $49.99 | per year |


### Mental Math

[App page](https://appshunter.io/ios/app/mental-math-step-by-step/id6819797049)

**In-app purchases:** none


## Frequently asked questions

### Is StepByStories free?

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

### Is Mental Math free?

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

### Do StepByStories or Mental Math have ads?

Neither StepByStories nor Mental Math 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.*