Comparison

Nonograms Katana vs Nonogram.com Color

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Nonograms Katana

Engage in logic puzzles where you fill cells based on numerical clues to reveal hidden pictures. This app offers a vast collection of puzzles, tools for marking cells, and options to create and share your own challenges.

Highlights
  • 1001 nonogram puzzles
  • Create and share custom puzzles
  • Black-and-white and colored puzzles
  • Puzzles sorted by size
  • Hints and undo/redo functionality
  • Cloud save and achievements
Features
Read full description

Nonograms Katana: Sharpen your mind! Nonograms, also known as Hanjie, Griddlers, Picross, Japanese Crosswords, Japanese Puzzles, Pic-a-Pix, "Paint by numbers" and other names, are picture logic puzzles in which cells in a grid must be colored or left blank according to numbers at the side of the grid to reveal a hidden picture. The numbers are a form of discrete tomography that measures how many unbroken lines of filled-in squares there are in any given row or column. For example, a clue of "4 8 3" would mean there are sets of four, eight, and three filled squares, in that order, with at least one blank square between successive groups. To solve a puzzle, one needs to determine which cells will be boxes and which will be empty. Determining which cells are to be left empty (called spaces) is as important as determining which to fill (called boxes). Later in the solving process, the spaces help determine where a clue (continuing block of boxes and a number in the legend) may spread. Solvers usually use a dot or a cross to mark cells they are certain are spaces. It is also important never to guess. Only cells that can be determined by logic should be filled. If guessing, a single error can spread over the entire field and completely ruin the solution. Features: - 1001 nonograms - All puzzles are free - All puzzles tested by computer program and have unique solution - Black-and-white and colored - Nonograms sorted by groups from 5x5 to 50x50 - Download puzzles sent by other users - Create and share your own puzzles - 15 free hints per puzzle - Use crosses, dots and other symbols to mark cells - Auto cross out numbers - Auto fill trivial and completed lines - Auto save; if you stuck you can try another puzzle and come back later - Zoom and smooth scrolling - Lock and zoom number bars - Lock current puzzle state, check assumptions - Customize background - Optional cursor for accurate picking - Undo and redo - Share result pictures - Save game progress to the cloud - Achievements and leaderboards - Screen rotation - Suitable for phones and tablets VIP Features: - No Ads - View Answer - 5 extra hints per puzzle The Guild Expansion: Welcome to the Adventurers Guild! By solving puzzles, you will get loot and experience. You will have weapons that allow you to deal with puzzles much faster. You will be able to complete quests and receive a reward. You will have to rebuild the settlement and collect the lost mosaic piece by piece. The Dungeon Expansion: Game in a game in a game. Isometric turn-based RPG. What adventurer doesn't dream of exploring a dungeon? site: https://nonograms-katana.com facebook: https://www.facebook.com/Nonograms.Katana

About

Nonogram.com Color

Engage in a vibrant logic puzzle experience by filling colored squares to reveal hidden pixel art. This game offers a fresh take on classic nonograms with enhanced gameplay and challenging multicolor puzzles. It's easy to learn and provides hours of addictive fun for puzzle enthusiasts.

Highlights
  • Fill squares with colors
  • Reveal hidden pictures
  • Challenging multicolor puzzles
  • Basic rules and logic guidance
  • Use hints for assistance
  • Earn extra lives
Features
Read full description

Discover the mystery of Nonogram.com Color! With its enhanced gameplay, it's easy to follow the game rules and become a Nonogram master. Explore Nonogram.com Color and discover a fresh take on this classic paper-and-pencil nonogram puzzle. Start with the basic rules and logic behind the picture cross puzzle with a challenging multicolor style. - Fill the squares with colors and reveal the hidden picture - Numbers above the column are read from top to bottom - Numbers to the left of the rows are read from left to right - Follow the order of color groups and switch colors to mark appropriate squares - Different color groups may be placed next to each other - Groups of the same color should be separated by at least 1 empty square - If you figure out that a square shouldn’t be colored, mark it with an X - Use hints if you get stuck - Get extra lives if you make a mistake Nonogram.com Color is easy to learn and quite addictive once you start playing. Challenge yourself and enjoy hours of fun with logic number puzzles!

Screenshots

Nonograms Katana4 screens
Nonogram.com Color4 screens

Verdict

The call

The clearest difference is ads: Nonograms Katana at none against Nonogram.com Color's shown. Nonograms Katana also leads on review sentiment (83% vs 54%). Nonogram.com Color's advantage is update cadence (every 3 weeks vs every 3 months) and ratings volume (26K vs 6.8K). On price, rating, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Nonograms Katana sells 3 one-off in-app purchases and Nonogram.com Color sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Nonograms Katana against 4.7 for Nonogram.com Color. Both are backed by a comparable volume of ratings — 6.8K and 26K respectively. Written reviews are what separate them: 83% of Nonograms Katana's written reviews are positive against 54% of Nonogram.com Color's.

UpkeepUpdate frequency

Nonograms Katana ships an update every 3 months, Nonogram.com Color every 3 weeks. Both last shipped on October 29, 2026.

Scorecard4 real differences · 6 level
Nonograms Katana versus Nonogram.com Color: the parameters behind the verdict, then further details
ParameterNonograms KatanaNonogram.com Color
PriceFreeFree
Rating4.8 (6.8K ratings) — better4.7 (26K ratings)
Positive reviews82.9% of reviews — better54.3% of reviews
Number of ratings6.8K26K — better
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size27 MB212 MB
Age rating12+12+
DeveloperUcdevs Interaction DOOEasybrain Ltd

Customer experience

Nonograms Katana

All ratings6,245 ratings
Positive97.2%
Neutral1.7%
Negative1.1%
Written reviews339 reviews
Positive82.9%
Neutral5.3%
Negative11.8%

Nonogram.com Color

All ratings25,520 ratings
Positive92.4%
Neutral4.3%
Negative3.4%
Written reviews617 reviews
Positive54.3%
Neutral19.6%
Negative26.1%

User reviews

Nonograms Katana

From 6.8K App Store ratings

What we love

  • 👍 Lots of puzzles
  • 👍 Customizable settings
  • 👍 Minimal ads
  • 👍 Challenging puzzles
  • 👍 User-created puzzles

Room to improve

  • 🐛 Occasional crashes
  • 🐛 Puzzle progress loss
  • 🐛 Ads not working
  • 🐛 Freezing issues
  • 🐛 Compatibility problems

Nonogram.com Color

From 26K App Store ratings

What we love

  • 🎨 Enjoyable color-based puzzles
  • 🧠 Mentally stimulating gameplay
  • 🕰️ Relaxing and addictive
  • 🎉 Fun events and challenges
  • 💰 Good value for ad-free version

Room to improve

  • 🎨 Confusing color combinations
  • 🔤 Poor contrast and visibility of numbers
  • 🔍 Difficulty in selecting small squares
  • 🔋 Drains battery quickly
  • 📺 Excessive and intrusive ads

Bugs and requests

Nonograms Katana

Reported bugs

5 issues
  • Puzzle progress not saving
  • Puzzle images not loading
  • Freezing/crashing on larger puzzles
  • Ads not playing properly
  • Compatibility issues with newer iOS versions

Requested features

7 requests
  • Dark mode option
  • Ability to rearrange/move puzzle pieces
  • Difficulty ratings for puzzles
  • Automatic line/row completion
  • Ability to follow/subscribe to users
Show 2 more
  • Notification system for new puzzles
  • Diagonal line drawing tool

Nonogram.com Color

Reported bugs

3 issues
  • Game freezing and crashing issues
  • Progress reset after updates
  • Incorrect/misleading clue information

Requested features

5 requests
  • Ability to choose difficulty level
  • Colorblind mode with high contrast
  • Zoom/magnification functionality
  • Undo/redo feature
  • Dark mode option

In-app purchases

3 purchases

Nonograms Katana

One-time3
  • 80 Hints$0.99
  • 200 Hints$1.99
  • VIP version$2.99
1 purchases

Nonogram.com Color

One-time1
  • Remove Ads$14.99

Questions

Is Nonograms Katana free?
Nonograms Katana is free to download, with in-app purchases available.
Is Nonogram.com Color free?
Nonogram.com Color is free to download, with in-app purchases available.
Which has better reviews, Nonograms Katana or Nonogram.com Color?
Nonograms Katana is rated higher. Nonograms Katana averages 4.8 out of 5 from 6.8K ratings, while Nonogram.com Color averages 4.7 from 26K ratings.
Do Nonograms Katana or Nonogram.com Color have ads?
Nonogram.com Color shows ads; Nonograms Katana does not.
Which is updated more often, Nonograms Katana or Nonogram.com Color?
Nonograms Katana ships an update every 3 months, and Nonogram.com Color every 3 weeks. Most recently, Nonograms Katana was updated on October 29, 2026 and Nonogram.com Color on October 29, 2026.

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