A logic game for keen puzzlers, ad-free!
• "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 is, hands down, THE best logic game on the App Store”, US App Store review Mar 2023
This type of logic 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.
Here are some of the reasons why you will enjoy playing Sumaddle:
• puzzles range in size and difficulty from small and simple to large and mind-blowing
• more than 120 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 and can be used as much as you like
• a high standard of accessibility, including comprehensive support for VoiceOver
• ad-free play - there are absolutely no ads!