# ThePrimes vs Sosu der

The clearest difference is ads: ThePrimes at none against Sosu der's shown. ThePrimes also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, 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.

ThePrimes ships an update every 7 months, Sosu der every 4 months. The most recent releases landed on September 19, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | ThePrimes | Sosu der |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 4 months** |
| Size | 18 MB | 140 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Damir Kolobaric](https://appshunter.io/developer/392542240) | [Hirobumi Onishi](https://appshunter.io/developer/1740115066) |

## What reviewers say

### ThePrimes

[App page](https://appshunter.io/ios/app/theprimes/id418752919)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sosu der

[App page](https://appshunter.io/ios/app/sosu-der/id6483364985)

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

**In-app purchases:** none


## Frequently asked questions

### Is ThePrimes free?

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

### Is Sosu der free?

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

### Do ThePrimes or Sosu der have ads?

Sosu der shows ads; ThePrimes does not.

### Which is updated more often, ThePrimes or Sosu der?

ThePrimes ships an update every 7 months, and Sosu der every 4 months. Most recently, ThePrimes was updated on September 19, 2026 and Sosu der on September 13, 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.*