2.8 Safe to install
Challenging Puzzles for a Mind Workout

SumSudoku offers a unique twist on traditional Sudoku with its Killer Sudoku mechanics, providing hours of brain-teasing fun for puzzle enthusiasts.
SumSudoku, also known as Killer Sudoku, is an addictive logic puzzle that combines elements of Sudoku and Kakuro. It provides endless entertainment and intellectual challenge for puzzle enthusiasts of all ages and skill levels.
Each puzzle consists of a 9x9 grid, with certain areas outlined by dark borders. The goal is to fill in the empty squares so that the numbers 1 to 9 appear exactly once in each row, column, and 3x3 box. Additionally, the sum of the numbers in each outlined area must equal the clue provided in the top-left corner of that area. No number can be used more than once within a single outlined area.
The game includes helpful features such as displaying possible sum combinations for each outlined area, as well as the ability to add temporary notations on the grid. A gallery view option allows players to track their progress visually on a larger scale.
For added enjoyment, Conceptis SumSudoku offers a weekly bonus section with an additional free puzzle.
- 120 free SumSudoku puzzle samples
- Extra bonus puzzle released every week at no cost
- Multiple difficulty levels to suit different preferences
- Ongoing updates with new puzzles
- Manually selected puzzles of the highest quality
- Unique solution for each puzzle
- Hours of intellectual challenge and fun
- Improvement of logic and cognitive skills
Gaming features:
- Unlimited check puzzle function
- Unlimited hints available
- Show conflicts during gameplay
- Unlimited Undo and Redo options
- Show possible sum combinations for each outlined area
- Pencilmarks feature for solving difficult puzzles
- Autofill pencilmarks mode
- Highlight Excluded Squares option
- Lock number on keypad option
- Ability to concurrently play and save multiple puzzles
- Filtering, sorting, and archiving options for puzzles
- Graphic previews that track puzzle progress in real-time
- Support for both portrait and landscape screens (iPad only)
- Puzzle solving time tracking
- Backup and restore puzzle progress using iCloud
About:
Conceptis SumSudoku puzzles are also known by other names such as Killer Sudoku, Sumdoku, and Sumoku. All puzzles in this app are created by Conceptis Ltd., the leading provider of logic puzzles in print and electronic media worldwide. Conceptis puzzles are enjoyed by millions of players each day across various platforms, including newspapers, magazines, books, and online platforms.
Overview
SumSudoku: Killer Sudoku is a Freeware software in the category Games & Entertainment developed by Conceptis Ltd..
The latest version of SumSudoku: Killer Sudoku is 2.8, released on 08/03/2024. It was initially added to our database on 11/05/2023.
SumSudoku: Killer Sudoku runs on the following operating systems: Android/iOS.
Users of SumSudoku: Killer Sudoku gave it a rating of 5 out of 5 stars.
Pros
- Engaging gameplay that combines elements of Sudoku and math.
- Available in various difficulty levels suitable for different skill levels.
- High-quality graphics and user-friendly interface.
- Regular updates with new puzzles to keep players engaged.
- Offers hints and solutions for players who get stuck.
- Can be played offline, providing flexibility for users.
Cons
- Limited number of free puzzles; additional puzzles require purchase.
- Some users may find the math aspect challenging or off-putting.
- Not available on all platforms, which may restrict access for some users.
- Occasional bugs or glitches reported by users in the app.
- In-app ads can be distracting for some users.

Pete Milner
I'm Pete, a software reviewer at UpdateStar with a passion for the ever-evolving world of technology. My background in engineering gives me a unique insight into the intricacies of software, allowing me to provide in-depth, knowledgeable reviews and analyses. Whether it's the newest software releases, tech innovations, or the latest trends, I'm here to break it all down for you. I work from UpdateStar’s Berlin main office.
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