# Leçon Interactive Sciences CP vs Qoozr

The clearest difference is in-app purchases: Leçon Interactive Sciences CP at none against Qoozr's 3. Leçon Interactive Sciences CP also leads on iOS requirement (13.0 vs 15.1). Qoozr's advantage is update cadence (every 3 weeks vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. Qoozr sells 3 in-app purchases, starting at $12.99 per month. Leçon Interactive Sciences CP asks for nothing beyond the download.

Leçon Interactive Sciences CP ships an update every 6 months, Qoozr every 3 weeks. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Leçon Interactive Sciences CP | Qoozr |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Size | 1.2 GB | 128 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Éditions JOCATOP](https://appshunter.io/developer/1438112476) | [KAVUMA JULIUS KIGERE](https://appshunter.io/developer/1887502499) |

## What reviewers say

### Leçon Interactive Sciences CP

[App page](https://appshunter.io/ios/app/lecon-interactive-sciences-cp/id6752484985)

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

**In-app purchases:** none


### Qoozr

[App page](https://appshunter.io/ios/app/qoozr-ai-study-homework-tutor/id6761049430)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Qoozr_Monthly | $12.99 | per month |
| Qoozr_Monthly_Trial | $12.99 | per month |
| Annual Unlimited | $109.99 | per year |


## Frequently asked questions

### Is Leçon Interactive Sciences CP free?

Leçon Interactive Sciences CP is free to download, with no in-app purchases.

### Is Qoozr free?

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

### Do Leçon Interactive Sciences CP or Qoozr have ads?

Neither Leçon Interactive Sciences CP nor Qoozr shows ads.

### Which is updated more often, Leçon Interactive Sciences CP or Qoozr?

Leçon Interactive Sciences CP ships an update every 6 months, and Qoozr every 3 weeks. Most recently, Leçon Interactive Sciences CP was updated on October 6, 2026 and Qoozr on October 3, 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.*