# 電子吹管 vs Permutation Combination

The clearest difference is device support: Permutation Combination at 3 against 電子吹管's —. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 電子吹管 | Permutation Combination |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/permutation-combination/id6448662601/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | — | Every 2 days |
| Monetization | — | Ad-supported |
| Size | 73 MB | 31 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Holtek Semiconductor(China) Inc](https://appshunter.io/developer/1052056181) | [HIWAZERO](https://appshunter.io/developer/1621048794) |

## What reviewers say

### 電子吹管

[App page](https://appshunter.io/ios/app/id1531578160)

**In-app purchases:** none


### Permutation Combination

[App page](https://appshunter.io/ios/app/permutation-combination/id6448662601)

Easily calculate permutations and combinations for mathematics and statistics. This tool simplifies complex calculations, helping users save time and improve accuracy in exams and studies.

**Highlights:** Permutation calculations, Combination calculations, Time-saving for exams, Mathematical and statistical use, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 電子吹管 free?

電子吹管 is free to download, with no in-app purchases.

### Is Permutation Combination free?

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

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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.*