Sumaddle

Sumaddle

Exercise your brain

764 ratings
98 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • February 14, 2021
  • June 26, 2026

Features

Sumaddle screenshot #1 for iPhone
Sumaddle screenshot #2 for iPhone
Sumaddle screenshot #3 for iPhone
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About

This logic puzzle game transforms pencil-and-paper challenges into interactive brain teasers. Fit number combinations to clues using pure logic, with no mental arithmetic required. Enjoy over 150 free puzzles of varying difficulty, with built-in help and offline play.

Interactive logic puzzles
Number combination fitting
Pure logic solving
Built-in help and mistake correction
Over 150 free puzzles
Offline play
Ad-free experience
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What users say

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What's New in Sumaddle

2.7.1

June 26, 2026

Ready for iOS 27! This version addresses a usability issue when running with iOS 27 and includes some other small fixes. The main changes: • The spotlight buttons react faster to the initial touch when running with iOS 27. • A layout issue has been resolved when viewing the leaderboards on an iPhone in landscape orientation. • An issue with jittery scrolling has been resolved when viewing the performance analysis for the puzzle generator on an iPhone in landscape orientation. Version 2.7.1 is a further minor update that includes an improvement to the way the help works when used for a puzzle with pencil markings. This version also addresses a possible cause of some occasional crashes.

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15

In-App Purchases

$9.99

Puzzle Generator

Unlimited new puzzles - just go on playing

User reviews

Fun game but it kind of solves itself

The game itself is fun! It could be a nice challenge and a great brain teaser, if it didn’t give you all the answers.

When you click a box to fill it, it shows all the number options you can choose inside that box. The issue is when you have already used that number in the row or column, it takes that number out the box and only shows available numbers. After you solve a few numbers, it pretty much has the puzzle solved for you. I don’t want a hint unless I have trouble solving the puzzle but you get one with every box. There is no way to turn this off. I messaged support to ask if I was just missing a setting and they confirmed it can’t be turned off.

Because you can use as many hints as you need, this function just feels kind of in the way and for no reason. With the 5x5 puzzles when you figure out 1 or 2 boxes, the game gives you the rest of the answers. There is still a good challenge to the 7x7 ones if you can ignore the hints! I’m kind of forcing myself to ignore the hints but then my adhd kicks in and I can’t help but notice, and it just kind of is annoying.

If it weren’t for that this would probably be my favorite number puzzle game! I considered paying for the extra puzzles when I finish the free ones but I just can’t pay for it to just give me the answers.

If this doesn’t bother you then you will find this game fun for sure!!
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Response from developer

Hi tb02830 and thanks for your review. It's true that the app doesn't let you set a duplicate number on a square. So when you are near the end of a game, there may not be many numbers to choose from and it might seem like it is leading you to the solution. But by this stage, the puzzle is probably cracked already, so it is just a matter of wrapping up the solution by filling in the blanks. In order to get this far, there will always be some crucial steps that you will need to figure out without the app leading the way. Hope that helps to explain why the app provides the level of automation that it does.

Love it!

I wish there were be more game like this!

Excellent logic game. Clean design.

I love a good logic game, and this is my new favourite. Fair prices too. No ads or other rubbish.

Brilliant puzzle game

So satisfying, like Sudoku, like Wordle, like Codewords, like Betweenle, I love these puzzles!

obsessive

i play this game obsessively! it’s somewhat difficult to learn at first, but once you understand how to solve the puzzles, it’s addicting. you can toggle the size and difficulty of the random puzzles, or you can try their packs for a few bucks—i’ve gotten every single one. plus, it’s available offline, so it’s a perfect airplane game. one of my all time favorites!!!
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User experience

🐞

Reported Bugs

2 issues

Losing progress when minimizing the app

Bug

Inconsistent difficulty ratings

Bug

Requested Features

4 requests

Ability to selectively pencil in notes

Feature

More difficult puzzle options

Feature

Synced progress across devices

Feature

Detailed statistics and leaderboard

Feature

FAQ

What is Sumaddle?

Sumaddle is an interactive logic puzzle game that transforms traditional pencil-and-paper puzzles into engaging digital brain teasers. It challenges players to fit number combinations to given clues using pure logic, making complex puzzles accessible and enjoyable.

What are the key features of Sumaddle?

Key features include interactive logic puzzles with unique solutions, over 150 free puzzles ranging in difficulty, no mental arithmetic required, a sophisticated built-in help system that explains reasoning and fixes mistakes, offline play, and an ad-free experience with high accessibility support.

Is Sumaddle free to play?

Yes, the app offers over 150 puzzles for free, and its built-in help system is also completely free to use. There are no ads in the game. Additional content or features may be available through in-app purchases.

What kind of puzzles does Sumaddle offer?

Sumaddle features logic puzzles where players must fit number combinations to clues. These puzzles are designed to be solved using pure logic, without the need for mental arithmetic. Puzzles vary in size and difficulty, from simple to complex.

Can I play Sumaddle offline?

Yes, Sumaddle works offline, making it a great option for long journeys or areas with limited internet connectivity. You can enjoy the puzzles without needing an active internet connection.