# Non vs Permutation Combination

The clearest difference is ads: Non at none against Permutation Combination's shown. Non also leads on review sentiment (33% vs 0%) and monetization model (free vs ad-supported). Permutation Combination's advantage is update cadence (every 2 days vs every 2 months). On price, 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.

Non ships an update every 2 months, Permutation Combination every 2 days. The most recent releases landed on July 28, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Non | Permutation Combination |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | **Free** | Ad-supported |
| Size | 10 MB | 31 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [QWERT LLC](https://appshunter.io/developer/1818744715) | [HIWAZERO](https://appshunter.io/developer/1621048794) |

## What reviewers say

### Non

[App page](https://appshunter.io/ios/app/non-overlapping-grouping/id1396507973)

This utility helps users create groups of people without duplicates. Input group sizes with hyphens for uneven numbers, and the app automatically generates groupings. It also allows checking for overlaps with previous groupings and can be set to avoid duplication.

**Highlights:** Continuous grouping without duplication, Automatic grouping based on input, Handles uneven group sizes, Checks for overlap with new groupings, Option to avoid duplication

**Features:** macOS Compatibility

**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 Non free?

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

### Is Permutation Combination free?

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

### Do Non or Permutation Combination have ads?

Permutation Combination shows ads; Non does not.

### Which is updated more often, Non or Permutation Combination?

Non ships an update every 2 months, and Permutation Combination every 2 days. Most recently, Non was updated on July 28, 2026 and Permutation Combination on June 1, 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.*