# The Study Wizard vs Rounding Errors

The clearest difference is in-app purchases: The Study Wizard at none against Rounding Errors's 1. The Study Wizard also leads on iOS requirement (17.6 vs 26.5). On price, ads and device support there is nothing between them.

Both are free to download. Rounding Errors sells 1 one-off in-app purchase. The Study Wizard asks for nothing beyond the download.

## The numbers

| Metric | The Study Wizard | Rounding Errors |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | — |
| Size | 2 MB | 17 MB |
| Requires iOS | **17.6** | 26.5 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Christopher Elliott](https://appshunter.io/developer/1795167768) | [scad.io](https://appshunter.io/developer/1014979997) |

## What reviewers say

### The Study Wizard

[App page](https://appshunter.io/ios/app/the-study-wizard/id6742042217)

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

**In-app purchases:** none


### Rounding Errors

[App page](https://appshunter.io/ios/app/rounding-errors/id6787504272)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Challenge Dr. Super Smart AI | $1.99 | one-time |


## Frequently asked questions

### Is The Study Wizard free?

The Study Wizard is free to download, with no in-app purchases.

### Is Rounding Errors free?

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

### Do The Study Wizard or Rounding Errors have ads?

Neither The Study Wizard nor Rounding Errors 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.*