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+

Quoi de neuf dans la dernière version ?

The 5-year anniversary celebration is coming to an end, so the app is reverting back to its regular look. The extra puzzles that were added for the special edition are still included in this version and players who already started playing the puzzles will be able to finish playing them, until the leaderboard resets again. The reset will happen on 9th March (UTC).

Other small changes in this version:

• The performance analysis popup features some styling adaptions for iOS 26. Some layout issues with this popup have also been fixed.

• When a clue value is tapped and empty squares are auto-filled with blocks, a warning symbol is shown if setting a block would cause an invalid arrangement. This will be the case if there are already two blocks in the intersecting row or column.

• A fix to prevent a crash from happening when resources cannot be loaded properly at app launch.