Sumaddle

iPhone / Jeux

• “Brilliant puzzle game”, UK App Store review Apr 2025

• “Best Puzzle Game I’ve Ever Played”, US App Store review Jan 2025

• “The ONLY iOS game I've never gotten tired of”, Reddit review Apr 2024

This type of logical puzzle was first seen in the Japan Puzzle Championship 2006 and is sometimes known as Doppelblock, or Smashed Sums. When played with pencil and paper, these puzzles can be hard work to solve. Sumaddle changes that by adding the essential element of interaction. This transforms the puzzles into intriguing brain teasers that unfold before your eyes.

Each puzzle has a unique solution. Finding the solution involves fitting the number combinations to the clues. The app makes it easy to view the possible combinations, you don’t need to do any sums in your head. Instead, you can focus on using logic to narrow down the combinations and find a fitting arrangement.

Some reasons why you will enjoy playing Sumaddle:

• puzzles range in size and difficulty from small and simple to large and mind-blowing

• more than 150 puzzles are included for free

• all puzzles can be solved with pure logic, no mental arithmetic required

• the sophisticated built-in help can explain the logical reasoning at each step and also fix mistakes if you go wrong

• the built-in help is completely free, use it as much as you like

• works offline (great for long journeys)

• a high standard of accessibility, including comprehensive support for VoiceOver

• ad-free play - there are absolutely no ads!

IGRS age rating (Indonesia Game Rating System): 3+ (verification pending)

Quoi de neuf dans la dernière version ?

A special anniversary edition, to celebrate 5 years since the app first went live in the App Store! This version includes an extra set of special puzzles, which are free to play.

Other changes in this version:

• More styling adaptions for iOS 26 have been applied to the section for Puzzle Packs and to the popup view of leaderboard scores.

• When the puzzles in a puzzle pack are reset, the clue values for the puzzles are re-arranged. The same applies to the puzzles featured in the preview of the puzzle generator. This helps to make the puzzles seem less familiar when played again.

• The puzzle pool used by the preview of the puzzle generator contains a more diverse collection of puzzles.

• Corrections to the way the preview of the puzzle generator picks the next puzzle from its pool when a puzzle of a particular size is requested. Sometimes, it was delivering a puzzle of the wrong size, or not delivering a puzzle at all, even though a suitable puzzle would have been available.

• A fix for when a row or column has two blocks and there is just a single square outside the blocks. If the setting to show inverted combinations is enabled and the clue value is tapped twice, the combination is now shown inverted, as it should be.

• The option to view the Game Center leaderboards using the classic display style has been dropped. It was no longer working with iOS 26.

The support website has a FAQ section with more information about the special edition. A link to this page can be found in the info popup on the main menu page of the app. The info popup is shown by tapping the info button, located bottom-left of screen.