---
title: "Permutation and Combination - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "This application can calculate permutation and combination easily."
---

# Permutation and Combination — United States

![Permutation and Combination App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/fb/43/d4/fb43d4e0-c377-7e1c-061b-04ccce22f26d/AppIcon-0-0-1x_U007emarketing-0-0-0-4-0-0-sRGB-0-0-0-GLES2_U002c0-512MB-85-220-0-0.png/434x0w.png)

**Developer:** [Keiji Matsui](https://apptail.io/developer/keiji-matsui-Fkqb)
**Category:** Education
**Rating:** 3.7/5 (15 ratings)
**Price:** Free
**Bundle ID:** Ofuna-Chuo-Hospital.Permutation
**Store:** Apple App Store
**Country:** United States
**Version:** 2.1 (released 2022-01-06)
**Original Release:** 2015-06-25
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1006634963)
**AppTail Page:** [https://apptail.io/app/permutation-and-combination-OtTe/united-states](https://apptail.io/app/permutation-and-combination-OtTe/united-states)

## Permutation and Combination Description
This application can calculate permutation and combination easily.

## Permutation and Combination Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple49/v4/44/cc/3c/44cc3c2c-e602-052a-11f2-2cec5244c6b3/pr_source.png/640x960.png)

## Permutation and Combination Rating Breakdown in United States
- 5 stars: 8 (53%)
- 4 stars: 0 (0%)
- 3 stars: 3 (20%)
- 2 stars: 2 (13%)
- 1 stars: 2 (13%)

## Permutation and Combination Reviews in United States

### *---- "App stopped working"
This app worked beautifully on my iPhone 14, but now that I upgraded to iPhone 17, it has stopped working. The two bars where you choose n and k no longer display the numbers. I can hear the sound when I scroll down but no numbers appear
-- Adadotmr, 2025-11-05

### ***-- "FOR PEOPLE HAVING THE INVISIBLE NUMBERS"
all you have to do is turn off dark mode
-- spotricr, 2025-02-06

### ***-- "This was a 5 star app until the last update"
This was a great little app, but on the last update, the scroll inputs (from and choose input numbers) are now blank.  The results still show but I have to blindly attempt to change the inputs until the output looks correct.  It was 5 stars before before that (and it may work for you... but if you update the iOS, Apple purposely kills your battery life to get you to buy a newer phone).
-- GregWoodward, 2022-05-13

### **--- "Great until update"
Up until i had to update my software this was my go to program for determining P&C but now the scroll bars are invisible AND the final results are invisible as well. Please fix!
-- darksideskyy, 2022-03-07

### ***-- "It’s broken"
Currently not working for iPhone X newest OS
-- kitenitekitenite, 2022-03-04

### ***** "Life saver!"
This app is extremely helpful for homework and saves me from having to buy an expensive calculator! You are life saver!
-- SummerzGone, 2018-07-17

### ***** "Great App"
Awesome app. Very easy to use. Great for homework
-- 😜😜😁😜, 2016-05-31

### ***** "Sweet app"
Well designed & simple & easy to use. Big help with kids homework. Thanks!!
-- Htowner, 2016-04-29

[View all Permutation and Combination reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)




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## Permutation and Combination Available In
- [United States](https://apptail.io/app/permutation-and-combination-OtTe/united-states)
- [Japan](https://apptail.io/app/permutation-and-combination-OtTe/japan)
- [Canada](https://apptail.io/app/permutation-and-combination-OtTe/canada)
- [Australia](https://apptail.io/app/permutation-and-combination-OtTe/australia)
- [Poland](https://apptail.io/app/permutation-and-combination-OtTe/poland)
- [Brazil](https://apptail.io/app/permutation-and-combination-OtTe/brazil)
- [Chile](https://apptail.io/app/permutation-and-combination-OtTe/chile)
- [China](https://apptail.io/app/permutation-and-combination-OtTe/china)
- [Colombia](https://apptail.io/app/permutation-and-combination-OtTe/colombia)
- [Czechia](https://apptail.io/app/permutation-and-combination-OtTe/czechia)
- [Denmark](https://apptail.io/app/permutation-and-combination-OtTe/denmark)
- [Dominican Republic](https://apptail.io/app/permutation-and-combination-OtTe/dominican-republic)
- [Algeria](https://apptail.io/app/permutation-and-combination-OtTe/algeria)
- [Ecuador](https://apptail.io/app/permutation-and-combination-OtTe/ecuador)
- [Egypt](https://apptail.io/app/permutation-and-combination-OtTe/egypt)
- [Spain](https://apptail.io/app/permutation-and-combination-OtTe/spain)
- [France](https://apptail.io/app/permutation-and-combination-OtTe/france)
- [United Kingdom](https://apptail.io/app/permutation-and-combination-OtTe/united-kingdom)
- [Indonesia](https://apptail.io/app/permutation-and-combination-OtTe/indonesia)
- [India](https://apptail.io/app/permutation-and-combination-OtTe/india)
- [South Africa](https://apptail.io/app/permutation-and-combination-OtTe/south-africa)
- [Argentina](https://apptail.io/app/permutation-and-combination-OtTe/argentina)
- [Austria](https://apptail.io/app/permutation-and-combination-OtTe/austria)
- [Azerbaijan](https://apptail.io/app/permutation-and-combination-OtTe/azerbaijan)
- [Belgium](https://apptail.io/app/permutation-and-combination-OtTe/belgium)
- [Romania](https://apptail.io/app/permutation-and-combination-OtTe/romania)
- [Russia](https://apptail.io/app/permutation-and-combination-OtTe/russia)
- [Türkiye](https://apptail.io/app/permutation-and-combination-OtTe/turkey)
- [Taiwan](https://apptail.io/app/permutation-and-combination-OtTe/taiwan)
- [Ukraine](https://apptail.io/app/permutation-and-combination-OtTe/ukraine)
- [Uzbekistan](https://apptail.io/app/permutation-and-combination-OtTe/uzbekistan)
- [United Arab Emirates](https://apptail.io/app/permutation-and-combination-OtTe/united-arab-emirates)
- [South Korea](https://apptail.io/app/permutation-and-combination-OtTe/south-korea)
- [Lebanon](https://apptail.io/app/permutation-and-combination-OtTe/lebanon)
- [Mexico](https://apptail.io/app/permutation-and-combination-OtTe/mexico)
- [Malaysia](https://apptail.io/app/permutation-and-combination-OtTe/malaysia)
- [Netherlands](https://apptail.io/app/permutation-and-combination-OtTe/netherlands)
- [Norway](https://apptail.io/app/permutation-and-combination-OtTe/norway)
- [New Zealand](https://apptail.io/app/permutation-and-combination-OtTe/new-zealand)
- [Peru](https://apptail.io/app/permutation-and-combination-OtTe/peru)
- [Ghana](https://apptail.io/app/permutation-and-combination-OtTe/ghana)
- [Slovakia](https://apptail.io/app/permutation-and-combination-OtTe/slovakia)
- [Barbados](https://apptail.io/app/permutation-and-combination-OtTe/barbados)
- [Latvia](https://apptail.io/app/permutation-and-combination-OtTe/latvia)
- [North Macedonia](https://apptail.io/app/permutation-and-combination-OtTe/north-macedonia)
- [Mauritius](https://apptail.io/app/permutation-and-combination-OtTe/mauritius)
- [Bulgaria](https://apptail.io/app/permutation-and-combination-OtTe/bulgaria)

---

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