# Inferential Statistics vs Introductory Statistics Tutor

The clearest difference is in-app purchases: Inferential Statistics at none against Introductory Statistics Tutor's 1. Inferential Statistics also leads on iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Introductory Statistics Tutor sells 1 one-off in-app purchase. Inferential Statistics asks for nothing beyond the download.

## The numbers

| Metric | Inferential Statistics | Introductory Statistics Tutor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 38 MB | 22 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [AFTW LLC](https://appshunter.io/developer/1886356149) | [David Soulsby](https://appshunter.io/developer/1776367161) |

## What reviewers say

### Inferential Statistics

[App page](https://appshunter.io/ios/app/inferential-statistics/id6774212165)

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

**In-app purchases:** none


### Introductory Statistics Tutor

[App page](https://appshunter.io/ios/app/introductory-statistics-tutor/id6815790980)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Topics | $4.99 | one-time |


## Frequently asked questions

### Is Inferential Statistics free?

Inferential Statistics is free to download, with no in-app purchases.

### Is Introductory Statistics Tutor free?

Introductory Statistics Tutor is free to download, with in-app purchases available.

### Do Inferential Statistics or Introductory Statistics Tutor have ads?

Neither Inferential Statistics nor Introductory Statistics Tutor 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.*