# Le pourquoi du comment...? vs Radart

The clearest difference is ads: Radart at none against Le pourquoi du comment...?'s shown. Le pourquoi du comment...?'s advantage is update cadence (every 2 months vs every 10 months) and iOS requirement (14.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Le pourquoi du comment...? ships an update every 2 months, Radart every 10 months. The most recent releases landed on October 23, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Le pourquoi du comment...? | Radart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/le-pourquoi-du-comment/id860049335/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | Ad-supported | — |
| Size | 9 MB | 59 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [David Azancot](https://appshunter.io/developer/507868249) | [Adrien Rougeron](https://appshunter.io/developer/1207706944) |

## What reviewers say

### Le pourquoi du comment...?

[App page](https://appshunter.io/ios/app/le-pourquoi-du-comment/id860049335)

Explore answers to everyday curiosities, from goosebumps to the transparency of water. This app provides offline access to a collection of fascinating questions and their explanations, making learning accessible anytime.

**Highlights:** Answers to common questions, Offline access, Search functionality, Curiosity-driven learning

**Features:** macOS Compatibility

**In-app purchases:** none


### Radart

[App page](https://appshunter.io/ios/app/radart/id6740461209)

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

**In-app purchases:** none


## Frequently asked questions

### Is Le pourquoi du comment...? free?

Le pourquoi du comment...? is free to download, with no in-app purchases.

### Is Radart free?

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

### Do Le pourquoi du comment...? or Radart have ads?

Le pourquoi du comment...? shows ads; Radart does not.

### Which is updated more often, Le pourquoi du comment...? or Radart?

Le pourquoi du comment...? ships an update every 2 months, and Radart every 10 months. Most recently, Le pourquoi du comment...? was updated on October 23, 2026 and Radart on October 28, 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.*