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LogiGrid Logic Problem Puzzles

By Harmony Applications

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Do you sometimes feel that you need a mental tune-up? Feel like your logical thinking skills aren't what they used to be? LOGIGRID Logic Problems are a challenging and fun way to develop your deductive reasoning and critical thinking skills. If you regularly do logic puzzles then you know how addictive they can be. If you're new to logic problems, they're simple to learn so you'll be solving them within minutes.

To solve LOGIGRIDs, you are given a scenario which describes the problem to be solved, followed by a set of clues from which you deduce the connections between groups of items such as people, places, objects, or dates. If you determine that a connection exists between the two items then you place a “dot” in the grid, if there is no connection then you enter an “X”. It's that easy!

Whether you have just a few minutes or a few hours, LOGIGRID's 20 original logic problems will entertain you while improving your ability to think and comprehend more clearly.


Runs optimally for the iPhone and iPad screen format.
Ease of use features include PROGRESS, UNDO, and AUTOFILL buttons.
Use in-app timer to challenge yourself and compete against others.

What's New in Version 1.0.1

- Added 5 more puzzles.
- Fixed issue with keeping track of completed puzzles.
- Made performance enhancements.
- Corrected spelling errors.


iPhone Screenshot 1
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iPad Screenshot 1
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Customer Reviews


So far no crashing at all. I have solved most of the puzzles. Very easy to use. Wish there were a few more puzzles but there are plenty as is. There is no explanation at the beginning of each puzzle but I had no problem catching on right away. The grids are very clear and easy to use. I have an Iphone 4s and the app has not crashed yet. If you love logic puzzles using grids this app is for you!!! I have bought logic puzzles magazines for years. This app is just like a mobile version of those. Super easy to scroll through the clues backward and forwards with the grid section still in place on the screen. No fumbling around for a pen. Just open the app and start solving. You can work or stop work on one puzzle and start a different one at any point. Then go back to the other one. Great app!

Classic Logic problems in grid

If you ever bought puzzler magazine for logic problems in a grid, this app is for you. Clean simple interface, game is played just like the classic grid. Love the ability to check progress. Tells you how many errors you have. I tend to press it after each main entry to verify my input. I have not used the ability to show the errors because I like to do that myself. Nice to play without the timer and can play any puzzle at any time since they are not locked. One suggestion to developer: your website has good instructions for newbies. Add an i to the app that opens a built-in description / instruction page. Hope more puzzles will be added soon ... They are challenging and addictive. A favorite!

Love, love, love this app! Designed well.

Well worth the $1.99 I paid for all the fun I have solving these puzzles. I really like the way this is set up and the ability to push a button to fill in the column & row Xs after I complete each clue. Also like the option to see if so far my answers are all correct. I am halfway through and I know I will want a new set so please come out with more puzzles. Also, can you find a way to present the kind of logic puzzles that aren't on a grid? I want to learn how to do those. But the grid kind is my favorite!

LogiGrid Logic Problem Puzzles
View In iTunes
This app is designed for both iPhone and iPad
  • $1.99
  • Category: Games
  • Updated: Feb 16, 2011
  • Version: 1.0.1
  • Size: 0.9 MB
  • Language: English
  • Seller: Martin White

Compatibility: Requires iOS 3.1 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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