# Bopp vs Introductory Statistics Tutor

The clearest difference is iOS requirement: Bopp at 15.6 against Introductory Statistics Tutor's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Bopp sells 2 in-app purchases, starting at $7.99 per 7 days and Introductory Statistics Tutor sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | Bopp | Introductory Statistics Tutor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 28 MB | 22 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Evrim Demir](https://appshunter.io/developer/1549845427) | [David Soulsby](https://appshunter.io/developer/1776367161) |

## What reviewers say

### Bopp

[App page](https://appshunter.io/ios/app/bopp-learn-spanish/id6760314401)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bopp Weekly Plan | $7.99 | per 7 days |
| Bopp Annual Pro | $29.99 | per year |


### 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 Bopp free?

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

### Is Introductory Statistics Tutor free?

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

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

Neither Bopp nor Introductory Statistics Tutor shows ads.

### Which is updated more often, Bopp or Introductory Statistics Tutor?

Bopp ships an update every 3 weeks, and Introductory Statistics Tutor every 3 weeks. Most recently, Bopp was updated on October 25, 2026 and Introductory Statistics Tutor on October 25, 2026.

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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.*