Combinatorics Mathematics

Pieter Pareit

In-app purchases

About this app

Combinatorics can calculate and enumerate all possible permutations, combinations, ...

Combinatorics algorithms:
* Permutations of letters
* Anagrams of words
* k-Permutations of letters
* Combinations of letters
* Combinations with repetitions of letters

Extra features:
* Displays the number of permutations/combinations/... with well formatted mathematical symbols using tex/latex
* Ability to share a calculation, for instance to save it to a file or to mail the result
* Unicode support, so letters of non latin alphabets and emoticons are also supported
* Option to send feedback from within application

Translations:
* English
* Dutch
* Portuguese
* Spanish

Ratings and reviews

Very good app. Please include a highlight option to copy and paste so it can be directly transfered to ms word. Also, symbols like +, -, *,/ , e.t.c, to get should be able to be inputed to know how many places a sign can be in a combination. E.g A+B-C and A-B+C and so on. Also, numbers like 10 and above are splited as 1 and 0. Lastly, once the letters exceed z, signs should be inputed like π,£, e.t.c. I really love this app and appreciate your team!

5 stars because i want to support this app but please 🥺 add a search 🔍 feature that will highlight whatever i search for exactly how it does on google chrome. Then i would buy pro. I feel this is essential when dealing with so many combinations or permutations and i just want to quickly get to the section that interests me. Thank you!

Very useful to learn and understand permutations or combinations. Would be really helpful to have much more information regarding the output and be able to use full Unicode symbols to have colorful icons in the output. For anyone interested, there is a free Windows program called Simple Solver that does this with a bit more features. Maybe it can be used on Android with a proot environment like UserLAnd, AnLinux or AndroNix - and Wine🍷Or a deeper Linux install if you have a rooted device.

What’s new

Version 2.7.0 (2026/06/30)
+ Add output separator settings
+ Add Hindi translations
+ Show a progress indicator while calculating
* Limit output preview and export full results
* Fix overview anagram formula
* Fix autofill problem
* Fix result field