Long before Sudoku hit the scene there were Logic Grid Puzzles. Developed by Lewis Carroll (besides writing Alice In Wonderland, he was also a mathematician and logician), these logic puzzles rely on deducing a complex solution from only a few pieces of information! You're probably thinking, "Whoa, that sounds really nerdy!" And you're right. But it's also really addicting. With only a few clues, you'll be able to fill in the entire 6 grid puzzle after you put your brain to work.

Plus, these types of word problems and logic puzzles are showing up with increasing regularity on standardized academic tests like the SAT, LSAT, MCAT and GRE. So beyond just being a fun past time, they're also a great way to prepare yourself for higher level learning.

The app is free, and includes a starter pack of puzzles so you can see if Logic Grid Puzzles are your kind of fun. If they are - there are already more packs with many more puzzles in place you can purchase from within the app - and I'm hard at work writing more puzzles to add in as soon as possible.

Sudoku and Ken Ken puzzles are fun, but I think you'll agree that solving word problems pushes your brain in ways those math based puzzles don't!

What’s New

Version 1.5.3

Minor update - just a few small tweaks to the new Booya Pack. Changed clue #1 in the 'Resumés' puzzle. And fixed a few other spelling errors. Thanks to Christina for pointing these out!

As always, if you get stuck on a puzzle, or have any other questions or concerns you can email me at

Thanks for all the great feedback and reviews - it really helps!!!

Ratings and Reviews

4.7 out of 5
625 Ratings
625 Ratings
1234567890123456789010 ,

Best Puzzle Ever, and I hate writing reviews.

This is by far my favorite app right now. Listen, I never write reviews- not on the App Store, not for products I buy..I just don’t really think it’s worth my time tbh. I won’t publicly endorse a product unless I use it exclusively and I really believe in it. My only official recommendations are US Army-issued moustache trimmers, Morton’s Salt, and the CR Laurence Fein two-inch axe-style scraper oscillating knife blade. But this app is incredible. I’m a philosophy major, and this app has boosted my reasoning abilities out the wazoo- well, I’m not a genius now, but it’s definitely made my class easier. If you’re looking to go to law school and take the LSAT (or sometimes the SAT/similar tests have stuff like this), this could really help you out. The stories are entertaining and make it a little easier to separate the premises, and I showed it to my professor and he loved it. 10/10 would recommend; logic is a skill many have lost.

92961159 ,

My favorite app!!!

I don't write reviews often, but this app is so great I had to! The puzzles are challenging and engaging which I love! I struggle to find apps that entertain me and keep my brain engaged, and this one does not disappoint!! The clues are funny and I often show them to my husband who also thinks they are quite clever. I love the differing levels of difficulty and am so glad I bought all the puzzle packs available because I go through them rather quickly! I would definitely recommend this app to anyone who loves logic puzzles!!! 😀
**Small side note, other people have commented that autofilling the rows once an answer is true would be nice, but I prefer it without. It allows more room for error so I feel like I have to pay attention more. So maybe if it gets added someday it could be something in the settings you can turn on and off.

NicknamesAllTaken$1107$ ,

Best purchase I’ve made in App Store

Very similar to a previous reviewer, I never write reviews. But Logic Puzzles is the best thing I’ve purchased on App Store, and it was only $1.99!! There are tons and tons of puzzles for that price. These puzzles can be addicting, my husband can attest! But they are so fun, and it’s great to just do one or two while I’m passing time. Before I would scroll and scroll through news only to feel dejected about current state of the world. Now I feel happy and sharp after I’ve done a puzzle or two. Best part is that when I finish all of the packs, I can just wipe them and start over! There is no way I’ll remember all the solutions.

Also, I have not confirmed this, but I think the creator might be from my city. Some of the clues seem totally unique to Minneapolis! Road names, State Fair reference... very cool!!!


Ross McNamara
7.6 MB
Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 12+ for the following:
Infrequent/Mild Alcohol, Tobacco, or Drug Use or References
© 2015 Ross McNamara
In-App Purchases
  1. The Radical Pack $0.99
  2. All Packs $1.99
  3. The Tubular Pack $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like