# Röntgenveckan vs Stella Math

The clearest difference is in-app purchases: Röntgenveckan at none against Stella Math's 2. Röntgenveckan also leads on iOS requirement (10.0 vs 16.0). Stella Math's advantage is update cadence (every 6 weeks vs every 11 months). On price, ads and device support there is nothing between them.

Both are free to download. Stella Math sells 2 in-app purchases, starting at $1.99 per month. Röntgenveckan asks for nothing beyond the download.

Röntgenveckan ships an update every 11 months, Stella Math every 6 weeks. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Röntgenveckan | Stella Math |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 6 weeks** |
| Size | 26 MB | 4 MB |
| Requires iOS | **10.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Malmo Kongressbyra AB](https://appshunter.io/developer/626924663) | [jarle steinnes](https://appshunter.io/developer/1839489216) |

## What reviewers say

### Röntgenveckan

[App page](https://appshunter.io/ios/app/rontgenveckan/id1225326254)

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

**In-app purchases:** none


### Stella Math

[App page](https://appshunter.io/ios/app/stella-math/id6761768695)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Manedlig abonnement | $1.99 | per month |
| Årlig abonnement | $14.99 | per year |


## Frequently asked questions

### Is Röntgenveckan free?

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

### Is Stella Math free?

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

### Do Röntgenveckan or Stella Math have ads?

Neither Röntgenveckan nor Stella Math shows ads.

### Which is updated more often, Röntgenveckan or Stella Math?

Röntgenveckan ships an update every 11 months, and Stella Math every 6 weeks. Most recently, Röntgenveckan was updated on September 29, 2026 and Stella Math on October 6, 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.*