# Combinatorics PRO — With Solution Steps

> With Solution Steps (iPhone/iPad app by Glindemann, Sennoun, Langer GbR.)

- Source: https://appshunter.io/ios/app/combinatorics-pro/id6472449368 (this page in markdown: same URL + `.md`)
- Developer: [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809)
- Category: Education, Utilities
- Price: $1.99
- Age rating: 4+
- Requires: iOS 15.0 · 179 MB
- Languages: Russian, Hindi, Indonesian, German (Germany), Japanese, French (France), Chinese (Simplified, China), American English, Brazilian Portuguese, European Spanish and 1 more
- Released: 2024-04-15
- Data updated: 2026-08-15
- User reviews in markdown: https://appshunter.io/ios/app/combinatorics-pro/id6472449368/reviews.md

## What is Combinatorics PRO?

Finally there is the app that provides all 6 variations of combinatorics with step by step solutions:

- permutation without repetition: Arranging elements without repetition.
- permutation with repetition: Arranging elements with repetition.
- combination without repetition: Selecting elements without considering the order.
- combination with repetition: Selecting elements with consideration of the order.
- variation without repetition: Arranging elements with fixed length without repetition.
- variation with repetition: Arranging elements with fixed length with repetition.

You only have to enter your values k and n. The values must be entered as natural numbers. The only exception is the k value for permutation with repitition. This requires several k values, which must be entered separated by semicolons.

All calculations are stored in the history. The final solution can be shared.

[ Contents ]
- all 6 variations of combinatorics
- results are calculated and shown in detail
- history to save the input
- detailed solution
- natural numbers are supported
- no ads!

[ Usage ]
- there are fields for entering values using a special keyboard
- multiple k values can be entered using the semicolon key
- press the check mark button at the bottom right to start the calculation
- if values are missing, the corresponding field is highlighted in yellow
- if the values are incorrect, the affected field will be highlighted in red
- a short message explains why a value is incorrect
- the entries in the history can be deleted or sorted
- if you select an entry in the history, it will be automatically loaded for the calculation
- the whole history can be deleted by pressing a button
- solutions can be shared


## Version history (last 5 releases)

### 2.2.4 — 2026-08-14

The latest release 'Least common multiple' is linked in the menu section now.

Minor performance and UI fixes.

### 2.2.2 — 2026-08-04

- the status bar on top is integrated into the current app design
- the app flow was improved (pop-up information was balanced)

### 2.2.1 — 2026-07-17

Maintenance update. Improving performance.

### 2.2.0 — 2026-06-19

Bringing all apps to the same security standard. Critical storage behaviour for solutions has been fixed.

By the way - I run many apps with different math topics. If you like this one: Check them out as well!

I always do my best to keep a high standard on my apps. If something does not meet the expectations, do not hesitate to contact me.

### 2.1.10 — 2026-06-06

There were some major fixes and adjustments for a more stable behaviour of the solution storage and loading. Therefore some database changes were made in the background. There are no performance losses and the functionality does not change. The background tasks are only done once within milliseconds. Following behaviour may occur (only temporary):
- stored calculations have to be tapped twice to load fully
- the order of the stored solutions may change

If there are some losses of solutions do not hesitate to contact me and tell me the number of lost solutions + affected app. I will find a solution for this.

Kind regards, Alex (the Dev)

## Apps similar to Combinatorics PRO

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Calcsharp Pro](https://appshunter.io/ios/app/calcsharp-pro/id1644401194) | — | $1.99 | Education |
| [Abacus Trainer 3](https://appshunter.io/ios/app/abacus-trainer-3/id1157882317) | — | $4.99 | Education |
| [Algorithms HQ](https://appshunter.io/ios/app/algorithms-hq/id660610218) | 4.0 (1) | Free | Education |
| [CFOP Learning](https://appshunter.io/ios/app/cfop-learning/id6741736244) | 2.0 (1) | $2.99 | Education |
| [Drawing with Math](https://appshunter.io/ios/app/drawing-with-math/id6479322887) | 4.5 (2) | Free | Education |
| [Genetic Algorithms](https://appshunter.io/ios/app/genetic-algorithms/id1571375136) | 5.0 (1) | Free | Education |

## More apps by Glindemann, Sennoun, Langer GbR

- [Pintrs EIGHT](https://appshunter.io/ios/app/pintrs-eight/id1043738177)
- [Pintrs](https://appshunter.io/ios/app/pintrs/id1076171058)
- [2048 Charming Easy](https://appshunter.io/ios/app/2048-charming-easy/id1154480597)
- [Touch shapes in order](https://appshunter.io/ios/app/touch-shapes-in-order/id1185530946)
- [Linear Equations Calculator](https://appshunter.io/ios/app/linear-equations-calculator/id1246761828)
- [Chubby Mojis Animated Sticker](https://appshunter.io/ios/app/chubby-mojis-animated-sticker/id1258233753)

All apps by Glindemann, Sennoun, Langer GbR: https://appshunter.io/developer/1024972809

## Related topics

[combinatorics pro](https://appshunter.io/ios/topics/combinatorics-pro) · [combinatoria](https://appshunter.io/ios/topics/combinatoria)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-15.*