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Nurikabe: Islands & Walls icon
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Nurikabe: Islands & Walls

Conceptis Ltd. · Games · United States store
NOT IN TOP 100 HERE
View on App Store ↗ Instagram card Google Play version →
Revenue a month, worldwide EST
$685
Likely $228 to $2.1K
New ratings
Tracking
Daily counts start building from today
Rating
4.9 of 5
401 ratings in this store
Countries it ranks in
0
was 0 on Oct 19, 2026

Revenue

Estimated from the grossing charts of Oct 26, 2026 in the 53 countries we track, and ratings growth on the App Store.

EST. REVENUE / YEAR · WORLDWIDE
$8.2K
8.0 new ratings a month on average since launch
EST. LIFETIME DOWNLOADS
14K to 40.1K
Estimated from ratings count
WHERE ITS USERS ARE · SHARE OF RATINGS
  • Japan 716 ratings54%
  • United States 401 ratings30%
  • United Kingdom 44 ratings3%
  • Germany 44 ratings3%
  • Netherlands 26 ratings2%
  • France 22 ratings2%
  • Australia 20 ratings1%
  • South Korea 17 ratings1%
HOW SURE ARE WE
Not in any grossing chart, so this comes from ratings growth (8.0 new ratings a month on average since launch): revenue grows with new ratings, more slowly for apps that collect ratings fast. Tested on 418 apps with verified revenue: typically off by about 2 times, and big earners tend to come out low. Countries we don't track (and Google Play in China, which doesn't exist) aren't included, and neither are ads or web payments. Gross revenue before store fees.
RATINGS
401
AVG RATING
4.86
PRICE
Free
AGE
13.8y
LAST UPDATE
193d ago
VERSION
5.0
SIZE
7 MB
AGE RATING
4+

Last 30 days

From our daily snapshots of every grossing chart.

DAYS IN A GROSSING CHART
1 / 30
COUNTRIES NOW
0 (was 0)
EST. REVENUE FROM CHARTS, DAILY · BOTH STORES ONLY EST
Show daily values
Sep 27, 2026not in a grossing chart
Sep 28, 2026not in a grossing chart
Sep 29, 2026not in a grossing chart
Sep 30, 2026not in a grossing chart
Oct 1, 2026not in a grossing chart
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Oct 5, 2026not in a grossing chart
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Oct 16, 2026not in a grossing chart
Oct 17, 2026not in a grossing chart
Oct 18, 2026not in a grossing chart
Oct 19, 2026not in a grossing chart
Oct 20, 2026$902 · 1 country
Oct 21, 2026not in a grossing chart
Oct 22, 2026not in a grossing chart
Oct 23, 2026not in a grossing chart
Oct 24, 2026not in a grossing chart
Oct 25, 2026not in a grossing chart
Oct 26, 2026not in a grossing chart
Best rank Sep 27, 2026: not ranked. Now: not ranked. Days at zero are days outside every grossing chart.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
10 purchases listed
  • Medium Variety 1$1.99
  • Hard Variety 1$1.99
  • Easy Variety 1$1.99
  • Medium Variety 2$1.99
  • Big & Medium 1$1.99
  • Hard Variety 2$1.99
  • Big & Tough 1$1.99
  • Big Challenges 1$1.99
Top in-app purchases as listed on the App Store, in local prices.
REVIEW MOMENTUM
0.2 reviews / week
  • Trendfalling
  • Recent reviews average4.8 stars
  • Recent 1 and 2 star share3%
From the latest 120 written reviews, covering 5044 days.
RELEASE CADENCE
0 updates in 90 days
  • Typical gap between releases143 days
From the last 25 versions listed on the App Store.
RATING BREAKDOWN
401 ratings
5★92%
4★6%
3★1%
2★0%
1★1%

What users want

From the latest 120 reviews on the United States App Store, Jan 4, 2013 to Apr 7, 2025: 3% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS

Only 4 of the latest 120 reviews are 1 or 2 stars, too few to find patterns. Users are mostly happy.

WHAT THEY ASK FOR
  • My only feature request is to enable dragging, where we can touch & drag to cover multiple squares. 5★, May 28, 2021
  • Edit: Been playing for many months now and i continue to love the puzzles, BUT I still wish they would include an all black mode fir those of us who just don't think as easily in negative space. 5★, Jul 26, 2020
  • My only complaint is that I wish I had a button to fill everything with shade, because I find it easier to take away from the grid than to fill it. 5★, Jul 26, 2020
  • Add a good "show me a deduction" feature and it would get five stars. 4★, Jan 16, 2016
  • It would be nice if their were an alternate setting where it would check only that you had not broken any rules, even if your solution was on the wrong track. 5★, Aug 1, 2014
  • Need ability to enlarge the grid 5★, Jul 28, 2013
  • PLEASE PLEASE add more puzzle packs! 5★, Jul 8, 2013
  • Pinch to zoom would be nice for some of the larger puzzles 3★, Feb 12, 2013
WORDS THAT KEEP COMING UP IN BAD REVIEWS

Nothing stands out.

WHAT THEY LOVE · SHARE OF GOOD REVIEWS
Fun, addictive37%

41 of the 4 and 5 star reviews.

★★★★★ It started off a little bit confusing for me, but once I got more familiar with the rules, this game has become so addicting.
★★★★★ I saw this game in an ad I'm a big fan of sudoku this is a lot like it but also very different worth a try if you like puzzles
★★★★★ I enjoy all conceptis puzzles.
Easy to use14%

16 of the 4 and 5 star reviews.

★★★★★ Get a free puzzle weekly but always easy introductory type...good puzzle game
★★★★★ This game is wonderfully fun and interface design is intuitive.
★★★★★ Simple to learn, challenging to solve, no language or math, just pure logic.
Looks great13%

14 of the 4 and 5 star reviews.

★★★★★ no ads and the ui is perfect conceptis ltd we love uuuuuu
★★★★★ This is my favorite logic puzzle type, and I love the interface.
★★★★★ This game is wonderfully fun and interface design is intuitive.
Worth the money8%

9 of the 4 and 5 star reviews.

★★★★★ Get a free puzzle weekly but always easy introductory type...good puzzle game
★★★★★ Nice logic puzzle game, no ads, plenty of free levels
★★★★★ In general I like the conceptis model: no ads, a bunch of starter puzzles for free, more puzzles for sale in paces for small amounts of money.
Fast3%

3 of the 4 and 5 star reviews.

★★★★★ I saw this game in an ad I'm a big fan of sudoku this is a lot like it but also very different worth a try if you like puzzles
★★★★★ Great, quick logic game that is fun to play again and again.

Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.

What users say

Latest reviews, United States App Store.

★★★★★Apr 7, 2025
Great logic game

Well executed with practical features to make it logistically simpler to play

★★★★★Mar 13, 2024
perfect app

no ads and the ui is perfect conceptis ltd we love uuuuuu

★★★★★Nov 29, 2023
Love all your puzzles

Would really love to see an app for your Skyscrapers puzzle too

★★★★★Sep 25, 2023
No ads, great puzzles

It started off a little bit confusing for me, but once I got more familiar with the rules, this game has become so addicting. Plus, no annoying pop-in ads, I’m seriously considering purchasing the extra puzzle bundles.

★★★★★May 6, 2023
Fun quick game

I saw this game in an ad I’m a big fan of sudoku this is a lot like it but also very different worth a try if you like puzzles

★★★★★May 4, 2023
Fun

So far. It’s a fun game. It makes you think.

Apps like this

Same category, earning about as much.

Store screenshots

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App Store ads

Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.

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Growth research

Where this app is buying and earning its users. Each link opens pre filtered.

ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title.

puzzle13puzzles12island6islands4nurikabe4logic4progress4solved4between clues3clues walls3create islands3help see3island size3size counter3puzzle progress3graphic previews3puzzles solved3clues3walls3size3wall3fun3features3previews3

What's new in 5.0

This version improves performance and stability.

Released Jan 2, 2013. Current version shipped Apr 16, 2026.

Store description

Partition between clues with walls to create islands with corresponding size! Each puzzle consists of a grid containing clues in various places. The object is to create islands by partitioning between clues with walls so that the number of squares in each island is equal to the value of the clue, all walls form a continuous path and there are no wall areas of 2x2 or larger. Each island must contain one clue and be isolated from other islands horizontally and vertically. Nurikabe are addictive island-forming puzzles which were invented in Japan. Using pure logic and requiring no math to solve, these fascinating puzzles offer endless fun and intellectual entertainment to puzzle fans of all skills and ages. The game features a highlighting option to help see if a wall segment is about to become isolated, and an island size counter to view how many squares belong to an island. To help see the puzzle progress, graphic previews in the puzzle list show the progress of all puzzles in a volume as they are being solved. A Gallery view option provides these previews in a larger format. For more fun, Conceptis Nurikabe includes a Weekly Bonus section providing an extra free puzzle each week. PUZZLE FEATURES • 90 free Nurikabe puzzles • 30 extra-large puzzles bonus for iPad only • Extra bonus puzzle published free each week • Multiple difficulty levels from very easy to extremely hard • Puzzle library continuously updates with new content • Manually selected, top quality puzzles • Unique solution for each puzzle • Hours of intellectual challenge and fun • Sharpens logic and improves cognitive skills GAMING FEATURES • Unlimited check puzzle • Unlimited Undo and Redo • Highlight wall segments • Show island size counter • Concurrently playing and saving multiple puzzles • Puzzle filtering, sorting and archiving options • Dark Mode support • Graphic previews showing puzzles progress as they are being solved • Portrait and landscape screen support (iPad only) • Track puzzle solving times • Backup & restore puzzle progress to iCloud ABOUT Nurikabe have also become popular under other names such as Islands in the Stream and Cell Structure. Similar to Sudoku, Kakuro and Hashi, the puzzles are solved using logic alone. All puzzles in this app are produced by Conceptis Ltd. - the leading supplier of logic puzzles to printed and electronic gaming media all over the world. On average, more than 20 million Conceptis puzzles are solved each day in newspapers, magazines, books and online as well as on smartphones and tablets across the world. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.conceptispuzzles.com/index.aspx?uri=info/doc/220

See this store page in another country

Prices, ranks and reviews are per country. Revenue above is already worldwide.

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