# Foxar vs Thullium

The clearest difference is in-app purchases: Thullium at none against Foxar's 4. Thullium also leads on iOS requirement (17.0 vs 26.1). Foxar's advantage is update cadence (weekly vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Foxar sells 4 in-app purchases, starting at $6.99 per month. Thullium asks for nothing beyond the download.

Foxar ships an update weekly, Thullium every 3 weeks. The most recent releases landed on September 23, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Foxar | Thullium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/foxar/id1524068804/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 76.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 191 MB | 5 MB |
| Requires iOS | 26.1 | **17.0** |
| Devices | iPhone, iPad, Vision Pro | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Foxar](https://appshunter.io/developer/1330154768) | [Richard Simonik](https://appshunter.io/developer/1707862972) |

## What reviewers say

### Foxar

[App page](https://appshunter.io/ios/app/foxar/id1524068804)

Explore educational topics and the world around you with interactive visualizations. This app makes complex subjects like the solar system and human anatomy easy to understand for students and curious minds.

**Highlights:** Interactive learning modules, Explore the Solar System, Understand the human body, Learn about matter and sound, Visualize volcanoes, Suitable for elementary and middle school

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Foxar+ Monthly | $6.99 | per month |
| Foxar Pro Monthly | $6.99 | per month |
| Foxar+ Annual | $49.99 | per year |
| Foxar Pro Annual | $49.99 | per year |


### Thullium

[App page](https://appshunter.io/ios/app/thullium/id6466820347)

**In-app purchases:** none


## Frequently asked questions

### Is Foxar free?

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

### Is Thullium free?

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

### Do Foxar or Thullium have ads?

Neither Foxar nor Thullium shows ads.

### Which is updated more often, Foxar or Thullium?

Foxar ships an update weekly, and Thullium every 3 weeks. Most recently, Foxar was updated on September 23, 2026 and Thullium on September 14, 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.*