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



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:
• classic
• wood
• night
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
(requires iOS9/tvOS9 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

Follow me on Twitter: #luethslogicals

New riddles are in progress and coming soon!

What's New

Version 5.0.2

• BUGFIX: the screenshot inside the feedback mail was not shown correctly

New in 5.0.1:
• BUGFIX: the buttons inside the tutorial were not shown
• NEW: preview videos

New in 5.0.0:
• NEW: improved handling on iPhone (pinch to zoom)
• NEW: autocomplete feature: if the 3 boxes of the first row are solved, you can automplete the matrix
• NEW: the chosen layout will be applied in the whole app now
• NEW: In-App Shop overhaul

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

I wish you a lot of fun while solving the new puzzles!

Ratings and Reviews

4.3 out of 5

1.3K Ratings

1.3K Ratings

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?

Wold give 5 stars but for the zoom

Dan my love 2012

The zoom feature should not be automatic. It’s nice if needed but it only zooms in one block, removing all others. When working thru these you have to be able to look at several blocks at once so constantly having to zoom back out makes it very frustrating. I don’t want to play this game strictly for that reason.


Candise Wendland

The app consists of 6 free puzzles (2 easy, 2 medium, 2 hard). If you want more, you gotta pay. Sounds reasonable. I noticed no errors in game play and all the puzzles were fairly simple. I'd recommend a setting to disable the zoom. Over all not bad. I enjoyed playing.

In-App Purchases

X01: MegaPack Vol. 1

contains all 60 puzzles of L01, L02, L03, L04


L01: PuzzlePack Vol. 1

2x easy • 5x medium • 8x hard


L02: PuzzlePack Vol. 2

3x easy • 5x medium • 7x hard


L03: PuzzlePack Vol. 3

5x easy • 5x medium • 5x hard


L04: PuzzlePack Vol. 4

5x easy • 5x medium • 5x hard


L05: PuzzlePack Vol. 5

4x easy • 5x medium • 6x hard



Christian Lueth
34 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch. Apple TV.
English, German
Age Rating
Rated 4+
© 2017 Christian Lüth
In-App Purchases
  1. E00: ProPack "Easy" $0.99
  2. X01: MegaPack Vol. 1 $6.99
  3. X00: Mega ProPack $1.99


  • 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.

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