Cross-a-Pix: Nonogram Crosses 4+

Fun logic puzzles

Conceptis Ltd.

    • 4.8 • 240 Ratings
    • Free
    • Offers In-App Purchases



Paint squares and fill regions as you solve the puzzle and discover a beautiful pixel-art picture! Each puzzle consists of a blank grid, divided into various regions, with clues to the left of every row and at the top of every column. The object is to reveal a hidden picture by painting squares and filling blocks according to the rules.

Cross-a-Pix are exciting logic puzzles that form whimsical pixel-art pictures when solved. Challenging, deductive and artistic, these puzzles offer the ultimate mix of logic, art and fun while providing solvers with many hours of mentally stimulating entertainment.

The game enables zooming the entire puzzle, or just the grid area while keeping the clue-panes locked. Other features include a unique fingertip cursor for playing large puzzles with ease and precision, and a show/hide rulers option helping focus on one row and column at a time.

To help see the puzzle progress, graphic previews in the puzzle list show the progress of all puzzles in a volume as they are being solved. A Gallery view option provides these previews in a larger format.

For more fun, Cross-a-Pix contains no ads and includes a Weekly Bonus section providing an extra free puzzle each week.


• 130 free Cross-a-Pix puzzles in SingleClue and DualClue
• Extra bonus puzzle published free each week
• Puzzle library continuously updates with new content
• Manually created by artists, top quality puzzles
• Unique solution for each puzzle
• Grid sizes up to 30x45 (45x60 for iPad)
• Multiple difficulty levels
• Hours of intellectual challenge and fun
• Sharpens logic and improves cognitive skills


• No ads
• Zoom entire puzzle or just the grid area
• Clue-pane locking option for optimal puzzle viewing
• Rulers show or hide option for easier row and column viewing
• Exclusive fingertip cursor design for solving large puzzles
• Unlimited check puzzle
• Error checking option when row or column is completed
• Unlimited Undo and Redo
• Clue auto check-off when row or column is completed
• Automatically mark obvious empty squares with dots
• Concurrently playing and saving multiple puzzles
• Puzzle filtering, sorting and archiving options
• Dark Mode support
• Graphic previews showing puzzles progress as they are being solved
• Portrait and landscape screen support (iPad only)
• Track puzzle solving times
• Backup & restore puzzle progress to iCloud


Cross-a-Pix have also become popular under other names such as Campixu, PoliPix and Crazy Paving. Similar to Picross, Nonogram and Griddlers, the puzzles are solved and the pictures revealed using logic alone. All puzzles in this app are produced by Conceptis Ltd. - the leading supplier of logic puzzles to printed and electronic gaming media all over the world. On average, more than 20 million Conceptis puzzles are solved each day in newspapers, magazines, books and online as well as on smartphones and tablets across the world.

What’s New

Version 2.9

This version improves performance and stability.

Ratings and Reviews

4.8 out of 5
240 Ratings

240 Ratings

werewulf ,

They're all winners at Conceptis

Edited 12 July 2021: 3 years later and I’m finally getting a handle on the double puzzles. The single ones still cause me to use all my brainpower and still fail occasionally. Hopefully, by next year I’ll finally be good at these. I still attempt them at least once a week.

Edited 25 July 2020 Well, it’s been a year since my last review and I’m still hooked. I still think these are the hardest of the Conceptis puzzles, but I am finally at the point where I can (usually) do the easy ones. I completely enjoy the way Conceptis forces me to use my brain!

Edited 26 July, 2019: I still find myself baffled by this puzzle many times. The doubles are pretty easy, but I struggle to get the easy ones in single mode. That said, it’s the first puzzle I open each week because I am fascinated with how it makes my brain work. Concept is puzzles are amazing!

Original Review: Yet another great logic/puzzle game. This one took me a while to figure out how to get started. Unlike their other puzzles, I thought the instructions were very confusing, but once I figured out what I was supposed to do, I took off and haven't looked back. These puzzles require a LOT of work, but they're incredibly satisfying when you get them. Another thumbs up!

AshleyZM ,

Another winner!!

Why am I SOOO addicted? This is becoming a problem!

These developers have taken so much money of mine ;-)

This game is awesome. It has a steeper learning curve, but stick with it. Can be difficult! And there are two different games. New players - start with dual clues games IMO. I'm loving it but have to admit that each game takes quite a while to play, and I've found myself needing the green (the row/column is correct setting), and the "check for mistakes" help for now. Those have been abandoned in pic-a-pix long ago ;-). I think another easy/small pack, or at least a few more obvious rows in bigger puzzles would help. Update: thank goodness they've added Snacks. The big ones and smallest are tough IMHO.

Love that I can turn off the ability to not see iPad packs. Yay, their other apps have added that too!

Ok, back to playing! Oh, no ads or anything, yay! Puzzle packs are a bit $, but can be replayed a lot!

Tip from author email (since this is different from older versions of pic-a-pix and I can't find it in Help) - To reset all puzzles in a volume, go to the Library screen and slide any
volume to the left. You can also hide volumes this way.

a2236 ,

Hooked and shooked

This is a fantastic game. It’s the best one Conceptis has to offer. I don’t spend money on games in general but I buy puzzle packs for this and other Conceptis games because I appreciate that these are high quality games and there’s no nonsense involved. These are some of the most interesting puzzles out there to solve, and there isn’t a constant stream of disruptive ads ruining the experience. If you love this game, throw them a couple dollars once in a while (you can restart packs and get a lot of plays out of them before they become too familiar).

App Privacy

The developer, Conceptis Ltd., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Identifiers
  • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

More By This Developer

Pic-a-Pix: Nonogram Color
Hashi: Bridges
Fill-a-Pix: Minesweeper Puzzle
Link-a-Pix: Nonogram Links
MultiSudoku: Samurai Sudoku
Sudoku: Classic & Variations

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