# 6book vs Billion Dollar Quiz

The clearest difference is in-app purchases: Billion Dollar Quiz at none against 6book's 1. Billion Dollar Quiz also leads on iOS requirement (15.6 vs 18.5). On price, ads and device support there is nothing between them.

Both are free to download. 6book sells 1 one-off in-app purchase. Billion Dollar Quiz asks for nothing beyond the download.

## The numbers

| Metric | 6book | Billion Dollar Quiz |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 10 days | — |
| Size | 4 MB | 24 MB |
| Requires iOS | 18.5 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Thibault Delimard](https://appshunter.io/developer/1597795805) | [Jinay Khimani](https://appshunter.io/developer/1775685179) |

## What reviewers say

### 6book

[App page](https://appshunter.io/ios/app/6book/id1671613650)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock | $0.99 | one-time |


### Billion Dollar Quiz

[App page](https://appshunter.io/ios/app/billion-dollar-quiz/id6737530633)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 6book free?

6book is free to download, with in-app purchases available.

### Is Billion Dollar Quiz free?

Billion Dollar Quiz is free to download, with no in-app purchases.

### Do 6book or Billion Dollar Quiz have ads?

Both 6book and Billion Dollar Quiz show 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.*