You can play Sudoku and Akari puzzles with this app. They are popular puzzles around the world.

- Sudoku
Place a number from 1 to 9 in each empty cell, Each row, column and 3x3 block contains all the number from 1 to 9. It's a king of pencil puzzles!

- Akari
Put light bulbs to illuminate all white areas. The rules are simple, but let you into the logic of a complex world.

We will release 2 or more problems a day. You can play them with the points by logining or watching ads. Let's enjoy!

What’s New

Version 1.0.11

Some improvements.

Ratings and Reviews

3.5 out of 5
4 Ratings

4 Ratings


New platform for classic puzzles

I was so sad to see all the wonderful Nikoli puzzles online go away. For me they were perfect because I don’t like solving them the old fashioned way (pencil). This app is excellent so far. I hope Nikoli plans on bringing my favorites to this app in the near future (masyu, yajilin, heyawake, shakashaka and numberlink). I also hope they figure out a way to bring the larger, more difficult puzzles to the app. With that said, any fan of logic puzzles should pick this up. Their puzzles are far superior to the procedurally generated imitators you see out there. These puzzles have character and soul!!

David Carlton ,

Good puzzles, bad and slimy app

The puzzles themselves are very good. The app is horrible.

On a quality level, the visual design is nonexistent, it shows a blank pop up every time you finish a puzzle, it doesn’t let you do basic sorting and filtering like “show oldest Akari puzzles”, it uses non-retina graphics (in an app in 2020!) This may be the single least polished app I have on my iPad.

On a slime level, it starts off by forcing you to enter your email address, with no justification given. You are forced to see ads every few puzzles (no way to pay to avoid them), with no way that I could find to exit from the ads without interacting with them. And that combined with the lack of polish makes me wonder just sort of tracking is going on behind the scenes here, what information is being sent to their ad partners.

Mostly, this just makes me wish Conceptis had an Akari app: that company makes competent apps that are designed to give you good puzzles with a straightforward way to buy more of them. Which clearly isn’t Nikoli’s goal with this app...

rothsbsh ,

New challenging Nikoli puzzles almost daily

I love the point system where the app earns money only when users use the app. Kudos to the puzzle contributors for providing top quality Sudoku/ Akari puzzles.

A suggested feature is a leaderboard of puzzle completion times according to difficulty level like in similar apps.

App Privacy

The developer, NIKOLI Co.,Ltd., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers
  • Usage Data

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • Identifiers

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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