Keen

Name: Keen
Rating: 4.4 (392 reviews)
Author: Sergey Maltsev

By: Sergey Maltsev

Puzzle game with unlimited procedurally generated levels and no ads.

This app was removed from Google Play Store on 2025-04-02

Features & Capabilities

Keen is a free puzzle game where the player fills in a grid so that each row and column has no overlapping numbers, while also satisfying the math operation in each section.

Keen is similar to sudoku and is sometimes also known as KenKen, Calcudoku, or Mathdoku. This app is unofficial and is not associated with Nextoy or the KenKen™ brand in any way.

Features:
• An unlimited number of levels
• Seven different grid sizes
• Five different difficulties
• A multiplication only option
• Undo and continue saved game options

The app is free, contains no advertisements, and is open source.

Enjoy!

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Notes:
• Based on a modified open source algorithm by Simon Tatham
• The app does not contain a tutorial. If you are not familiar with this puzzle type you will have to google it or learn via experimenting.
• High difficulty multiplication only levels can take a while to generate
• This app is unofficial and is not associated with Nextoy or the KenKen™ brand in any way.

User Growth & Download Statistics

Game

By:

Downloads:

Rating:

Version:

1.3.1 Last updated: 2018-09-20

Creation date:

2017-01-07

Email:

ye*****@gmail.com

URLs:

Full description:

Source:

Google Play Store

Data ingested on:

2025-04-02

Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

Sergey Maltsev

Google Play Store

https://play.google.com/store/apps/details?id=org.yegie.keenforandroid

Email:

ye*****@gmail.com

User Reviews

Pros

No ads
Simple and elegant design
Variety of difficulty levels and grid sizes
Smooth gameplay
Free and open-source

Cons

No dark mode option
Small number buttons at higher levels
Lack of instructions or information for new users
Occasional inconsistent puzzle difficulty
Absence of a hint system

Recent reviews

This is coded perfectly, and the simplicity and ease of gameplay is unbeatable! My only suggestion to make it better is to have a dark mode option where the colors are inverted. I love playing this at night, but the white background can strain my eyes. Outside of that, this is the best app on the app store.

Hu*****, 2023-05-24

Is exactly what I'm looking for in a simple puzzle game app. No ads, no hastle, works very smoothly. If this app had a dark mode, I'd consider it near enough to flawless.