Keen was a puzzle app developed by Sergey Maltsev. It was removed from Google Play Mar 21, 2025 and is no longer available for download.
Download Statistics
Keen had been downloaded 66 thousand times before it became unavailable.
User Ratings
Keen was rated 4.34 out of 5 stars, based on 360 ratings.
App Information
Keen was free to download. The APK download size was 1.37 MB. The last available version was 1.3.1. The last update was on September 20, 2018.
Technical Requirements
Keen required Android 5.1+ or higher. The app had a content rating of Everyone. The app had been available on Google Play January 2017.
Description
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.
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★★★★★
NO ADS, limitless puzzles, and easy to customize difficulty! The downsides are 1) pretty small at 9x9 size, so it's easy to tap the wrong thing, 2) no 'clear board' button, 3) no dark mode. But this is a free (open source) app with no profit for the creator, so it still gets high praise!
★★★★★
Good Ken ken app, clean, no ads, nice design. Recommend a night mode option as well if looking to improve. Edit: too often but I could swear that some of these just can't line up correctly and the numbers are set to collide when they shouldn't.
★★★★★
Is exactly what I'm looking for in a simple puzzle game app. No ads, no hastle, work very smoothly. If this app had a dark mode, I'd consider it near enough to flawless.
★★☆☆☆
I am very happy to say that I won the exam of Ken and got bronze medal by practicing in this app this is very useful. Thank you.
★★☆☆☆
There are no instructions or information on what to do in the app; you have to already be familiar with the type of puzzle, look the app's page back up here, or find info on Wikipedia to know what you're meant to do or what the game is expecting of you. A simple info page linked through a button on the level selection screen would bump this app's usability by 738%.
★★☆☆☆
I just downloaded this and have come across 2 unsolvedable puzzles where none of the number combinations would solve the problem for example: 13 +, had 3 boxes, and numbers 1 through 5. 5+4+3 = 12, how exactly would I get to 13.
★★☆☆☆
The game itself looks good, but the numbers (math operations) invisibly small. Only for people with really big screens and eagle's eyes
Technologies used by Keen
Keen is requesting 0 permissions and is using 4 libraries.
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