SumSudoku: Killer Sudoku

SumSudoku: Killer Sudoku

Crossovers with Kakuro flavor

776 ratings
234 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • November 23, 2017
  • April 9, 2026

Features

SumSudoku: Killer Sudoku video #1 for iPhone
SumSudoku: Killer Sudoku screenshot #2 for iPhone
SumSudoku: Killer Sudoku screenshot #3 for iPhone
SumSudoku: Killer Sudoku screenshot #4 for iPhone
SumSudoku: Killer Sudoku screenshot #5 for iPhone
SumSudoku: Killer Sudoku screenshot #6 for iPhone
iphone
ipad
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About

This app offers a logic puzzle experience combining Sudoku and Kakuro elements. Solve grids by filling numbers 1-9, ensuring each appears once per row, column, and box, while also meeting area sum clues. Features include hints, pencilmarks, and progress previews.

Killer Sudoku puzzles
Kakuro-style sum clues
Logic and calculation based
Hints and pencilmarks
Progress previews
Weekly bonus puzzles
Multiple difficulty levels
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What users say

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What's New in SumSudoku

3.4

April 9, 2026

This version fixes the issue of showing sum-combinations by swiping finger on a block.

32

In-App Purchases

$0.99

Easy 1

30 SumSudoku puzzles

User reviews

夢中になっています

毎日楽しくプレイしています。広告が出なくて軽いし、機能もとても使いやすいです。上級のパズルが解けた時は至上の快感!元々基本無料なのに、ウィークリーボーナスでパズルが配信されるのもお得すぎていいのかな?と思ってしまうくらいです。これからもたくさん楽しませていただきます!

アプデありがとうございます

毎日のようにあそんでいます。数あるパズルアプリの中でこちらの会社のアプリはどれも操作性の良さ、無料で遊べる数、複数の難易度、良価格帯、無広告…と群を抜いています。

Response from developer

レビューいただきありがとうございます。最近のアップデートでzoom機能等を盛り込み、フリックで数字のヒントが見れなくなり申し訳ございません。只今諸々修正作業をしております。数字のコンビネーションはキーパッドのΣで表示されますのでお試しください。

色々と元に戻った👍

対応ありがとうございます😊

Response from developer

レビューいただきありがとうございます。最近のアップデートでzoom機能等を盛り込んだため、Σでしか数字のヒントが見れなくなり申し訳ございません。只今諸々修正作業をしております。 修正作業が終わりましたので、スワイプで数字のコンビネーションを表示いただけます。お試しいただけましたら幸いです。

The swipe issue has been fixed!

Thanks for adding back the swipe feature. Now this is the best SumSudoku app in the App Store.

とても楽しんでいます

こちらは中級が丁度よくプレイしています。ウィークリーボーナスも有り難いです。それからスワイプ表示の不具合修正ありがとうございました。

Developer apps

User experience

🐞

Reported Bugs

2 issues

Some puzzles have incorrect sums or repeated numbers

Bug

Autofill feature doesn't always work as expected

Bug

Requested Features

4 requests

Add ability to select difficulty level for weekly bonus puzzles

Feature

Implement a 'dark mode' option

Feature

Allow users to cross out/eliminate number possibilities

Feature

Add a 'one-tap' feature to fill in all 9 numbers in a cell

Feature

FAQ

What is SumSudoku?

SumSudoku is a logic puzzle game that blends elements of Sudoku and Kakuro. Players fill a 9x9 grid with numbers 1-9, ensuring each number appears once per row, column, and 3x3 box. Additionally, the sum of numbers within designated areas must match the clue provided in the top-left corner of each area.

What are the key features of SumSudoku?

The app offers 120 free puzzles, a weekly bonus puzzle, multiple difficulty levels, and a continuously updating puzzle library. Helpful gaming features include unlimited hints, undo/redo, conflict highlighting, pencilmarks, and graphic previews of puzzle progress.

Is SumSudoku free to play?

The app is free to download and play, offering a significant number of free puzzles and a weekly bonus puzzle. While the core game is free, it does have in-app purchases, likely for additional puzzle packs or content.

What platforms is SumSudoku available on?

Based on the provided information, the app supports Portrait and landscape screen modes on iPad. It is designed for mobile devices, suggesting availability on iOS platforms.

What are the benefits of playing SumSudoku?

Playing SumSudoku provides hours of intellectual challenge and fun. It sharpens logic skills, improves cognitive abilities, and offers a satisfying mental workout through its addictive logic puzzles.