# Permutation Combination vs Factorial Calculator

The clearest difference is update cadence: Permutation Combination at every 2 days against Factorial Calculator's every 12 months. On price, ads, in-app purchases and monetization model there is nothing between them.

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

Permutation Combination ships an update every 2 days, Factorial Calculator every 12 months. The most recent releases landed on September 30, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Permutation Combination | Factorial Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/factorial-calculator/id6741139916/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Every 12 months |
| Monetization | Ad-supported | Ad-supported |
| Size | 31 MB | 12 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HIWAZERO](https://appshunter.io/developer/1621048794) | [SDG CODE DOO NIS](https://appshunter.io/developer/1343251532) |

## What reviewers say

### 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


### Factorial Calculator

[App page](https://appshunter.io/ios/app/factorial-calculator/id6741139916)

Easily compute the factorial of any whole number with this straightforward utility. Designed for simplicity and ease of use, it provides a quick way to get factorial results.

**Highlights:** Calculate factorials, Whole number input, Easy to use interface, Quick results

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Permutation Combination free?

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

### Is Factorial Calculator free?

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

### Do Permutation Combination or Factorial Calculator have ads?

Both Permutation Combination and Factorial Calculator show ads.

### Which is updated more often, Permutation Combination or Factorial Calculator?

Permutation Combination ships an update every 2 days, and Factorial Calculator every 12 months. Most recently, Permutation Combination was updated on September 30, 2026 and Factorial Calculator on October 4, 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.*