Nonograms Katana vs Ninigrams
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
- 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
Read full descriptionHide 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
Ninigrams
Solve logic puzzles to reveal hidden pixel art. Use numbered clues to deduce which squares to fill, with no guessing required. Enjoy a satisfying and distraction-free experience with over 400 handcrafted puzzles.
- Reveal hidden pixel art
- Logic-based deduction
- 400+ handcrafted puzzles
- Offline play
- Interactive tutorial
- Mobile-optimized controls
Read full descriptionHide full description
Ninigrams is a nonogram puzzle game where logic slowly reveals hidden pixel art, one filled tile at a time. Using the numbered clues along each row and column, you’ll figure out which squares to fill and which to leave blank. Every puzzle has a single, guaranteed solution, so everything comes down to careful deduction – no guessing needed! Ninigrams started as a small puzzle idea shared with the Reddit community and has grown into something much bigger, with a community of over 24,000 members, puzzles reaching 1M+ total views, and individual challenges solved 10,000+ times. Now, that same handcrafted puzzle experience lives in your pocket. Whether you’re new to nonograms or already hooked on these puzzles, Ninigrams offers a clean, satisfying experience that’s easy to start and hard to put down. Features include: • 400+ handcrafted pixel-art puzzles to uncover • Fully playable offline (no Wi-Fi required) • Built-in interactive tutorial to help you get started • Smooth drag-to-fill controls designed for mobile • Optional timer and autofill tools you can toggle anytime • 4 seasonal backgrounds to match your mood • Clean, distraction-free interface focused on solving
Screenshots
Verdict
The clearest difference is price: Nonograms Katana at Free against Ninigrams's $4.99. Nonograms Katana also leads on ratings volume (6.6K vs 12). Ninigrams's advantage is in-app purchases (none vs 3) and update cadence (every 3 days vs every 3 months). On rating, ads, device support and iOS requirement 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
Nonograms Katana is free to download; Ninigrams costs $4.99 up front. Nonograms Katana sells 3 one-off in-app purchases. Ninigrams asks for nothing beyond the download.
Ninigrams holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Nonograms Katana has 6.6K ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 83% of Nonograms Katana's written reviews are positive against 100% of Ninigrams's.
Nonograms Katana ships an update every 3 months, Ninigrams every 3 days. The most recent releases landed on October 16, 2026 and October 11, 2026 respectively.
| Parameter | Nonograms Katana | Ninigrams |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 4.8 (6.6K ratings) | 5.0 (12 ratings) — better |
| Positive reviews | 82.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 6.6K — better | 12 |
| Update frequency | Every 3 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 27 MB | 34 MB |
| Age rating | 12+ | 4+ |
| Developer | Ucdevs Interaction DOO | NINA BERRY KOH |
Customer experience
Nonograms Katana
Ninigrams
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 moreShow fewer
- Notification system for new puzzles
- Diagonal line drawing tool
Ninigrams
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Nonograms Katana
- 80 Hints$0.99
- 200 Hints$1.99
- VIP version$2.99
Ninigrams
No in-app purchases
Questions
Is Nonograms Katana free?
Is Ninigrams free?
Which has better reviews, Nonograms Katana or Ninigrams?
Do Nonograms Katana or Ninigrams have ads?
Which is updated more often, Nonograms Katana or Ninigrams?
Other comparisons















