# Power of 2 vs 瞬間素因数分解 Prime Factorization

The clearest difference is in-app purchases: Power of 2 at none against 瞬間素因数分解 Prime Factorization's 1. Power of 2 also leads on iOS requirement (15.4 vs 17.0). 瞬間素因数分解 Prime Factorization's advantage is device support. On price there is nothing between them.

Both are free to download. 瞬間素因数分解 Prime Factorization sells 1 one-off in-app purchase. Power of 2 asks for nothing beyond the download.

## The numbers

| Metric | Power of 2 | 瞬間素因数分解 Prime Factorization |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Weekly |
| Size | 0 MB | 3 MB |
| Requires iOS | **15.4** | 17.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Katsuhiko Yao](https://appshunter.io/developer/1543188534) | [YUSUKE MIZUNO](https://appshunter.io/developer/1729948508) |

## What reviewers say

### Power of 2

[App page](https://appshunter.io/ios/app/power-of-2/id6450391335)

**In-app purchases:** none


### 瞬間素因数分解 Prime Factorization

[App page](https://appshunter.io/ios/app/prime-factorization/id6478605149)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ad | $1.99 | one-time |


## Frequently asked questions

### Is Power of 2 free?

Power of 2 is free to download, with no in-app purchases.

### Is 瞬間素因数分解 Prime Factorization free?

瞬間素因数分解 Prime Factorization is free to download, with in-app purchases available.

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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.*