Solve logic grid puzzles similar to Einstein's famous zebra puzzle "Who has the fish?" on your iPad, iPhone, Apple TV and Mac!



6 riddles (Logicals):
• 2x easy (4 values per category)
• 2x medium (5 values per category)
• 2x hard (5 values per category)
• additional levelpacks available via in app purchase

36 riddles (Logicals Pro):
• 15x easy (4 values per category)
• 6x medium (5 values per category)
• 15x hard (5 values per category)
• additional levelpacks available via in app purchase

3x3 Layouts:
• light
• coffee
• dark
each in the variants
• full/empty
• plus/minus
• check/cross

2 languages:
• german
• english

easy solving of riddles by tapping:
• tap once for "does not match"
• tap twice for "matches"

additional features:
• timer and Game Center support
• current state can be checked at any time
• solving table as assistance for a better overview (iPad only)

completely free of ads!

compatible devices:
• iPhone 5 or newer
• iPad
• iPad Pro
• Apple TV 4
• iMac, MacBook, Mac Mini
(requires iOS10.3/tvOS9/macOS10.5 or higher)


If you like the app, please leave me a good review!

If you have questions, problems or suggestions, please contact me by email to

What’s New

Version 7.4.0

• NEW: professional translation of Puzzle Pack L06 into English
• BUGFIX: design modifications

If you like the app, feel free to add an app review. If you have problems or suggestions for improvement, please contact me by sending an e-mail to
Enjoy solving the puzzles!

Ratings and Reviews

3.0 out of 5
2 Ratings

2 Ratings

Ohsusannahtoo ,

Love these puzzles, but . . .

Do love logic problems, and I have since I was a kid. This app is great. However, I bought 3 new puzzle packs today and they aren’t showing up in my app. There’s also no download button available. I’d really like to get the puzzles, but if I can’t, I’d like my money back. Can anyone help?

Developer Response ,

Hi Ohsusannahtoo,
sorry for replying so late. Does the problem still exist?

Healthy Cuisinist ,

Poor functionality

You have to use a double tap to undo a single tap(which is easily mistapped on smaller screens). When you try to single tap it again to remove it, it only creates a double tap positive bubble. Then another double tap to remove that leaves a bunch of negative bubbles all over the grid. You have to clear an entire grid using double tap to remove the mess and this essentially makes you have to start all over again with your logic. If they can create a way to clear a negative bubble with a single tap that would make the game easier to play.

Developer Response ,

All you have to do is to tap the „undo“ button :)
In addition, you can pinch to zoom. the screen. I hope that helps!

jmanza ,

Please update for new iPad Pro

UPDATE: This app is now officially the best logic grid puzzle app out there! Look no further.

UPDATE: prompt response received from developer. Waiting for change to happen.

Needs to be updated to be compatible with the larger screen.

Developer Response ,

Hi jmanza,
version 6.0.3 is finally ready for download. Now you can play Logicals in full screen mode on your new iPad!

In-App Purchases

L08: Puzzle Pack Vol. 8 (15x)
E43-E45 • M42-M46 • H59-H65
L07: Puzzle Pack Vol. 7 (15x)
E39-E42 • M37-M41 • H53-H58
X02: MegaPack Vol. 2 (60x)
contains all 60 puzzles of L05, L06, L07, L08
X01: MegaPack Vol. 1 (60x)
contains all 60 puzzles of L01, L02, L03, L04
X00: Mega ProPack (30x)
contains all 30 puzzles from E00, M00, H00
H04: PuzzlePack Hard 4 (15x)
M42-M46 from L08 • H56-H65 from L07 & L08

App Privacy

The developer, Christian Lueth, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

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

More By This Developer

You May Also Like