# CheckPrimeNumbers vs Mole OTG

The clearest difference is price: Mole OTG at Free against CheckPrimeNumbers's $0.99. Mole OTG also leads on iOS requirement (12.0 vs 15.0). CheckPrimeNumbers's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

Mole OTG is free to download; CheckPrimeNumbers costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | CheckPrimeNumbers | Mole OTG |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Daily |
| Size | 0 MB | 31 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sreekanth Parigela](https://appshunter.io/developer/1763791561) | [Japality Limited](https://appshunter.io/developer/1574046707) |

## What reviewers say

### CheckPrimeNumbers

[App page](https://appshunter.io/ios/app/checkprimenumbers/id6670205769)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mole OTG

[App page](https://appshunter.io/ios/app/mole-otg/id6749512146)

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

**In-app purchases:** none


## Frequently asked questions

### Is CheckPrimeNumbers free?

CheckPrimeNumbers costs $0.99, with no in-app purchases.

### Is Mole OTG free?

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

### Do CheckPrimeNumbers or Mole OTG have ads?

Mole OTG shows ads; CheckPrimeNumbers does not.

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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.*