Comparison

Nonograms Katana vs Hashi Solver

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

Hashi Solver

This app helps you solve Hashi puzzles by finding bridge combinations. Input your puzzle details into the editor and let the app generate the solution. You can also save and load your puzzles.

Highlights
  • Puzzle editor
  • Automatic solution generation
  • Save and load puzzles
  • Bridge combination finder
  • Easy-to-use interface
Features
Read full description

Need help solving a Hashi puzzle? Use this app to find the solution! Enter your puzzle in the easy-to-use puzzle editor. Watch the app try different combinations of bridges to solve your puzzle. Take pictures of your favorite puzzles. Save puzzles for later, or load puzzles you saved previously. NOTE: This app does not provide puzzles for you to solve. You bring the puzzle, the app gives you the answer. About the game of Hashi (hashiwokakero, 橋をかけろ) Hashi is a bridge building game. Islands are planted on a grid, and each island has a number from 1 to 8. Solve the puzzle by drawing bridges between the islands, obeying the following rules: 1. The total bridges on each island must match the number. 2. Bridges must run north-south or east-west. 3. Bridges can’t cross other bridges or islands. 4. No more than two bridges can connect the same pair of islands. 5. All the islands must be connected together.

Screenshots

Nonograms Katana4 screens
Hashi Solver4 screens

Verdict

The call

The clearest difference is rating: Nonograms Katana at 4.8 against Hashi Solver's 4.0. Nonograms Katana also leads on ratings volume (6.8K vs 1). Hashi Solver's advantage is review sentiment (100% vs 83%). On price, update cadence, ads and in-app purchases 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 Hashi Solver sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Nonograms Katana holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Nonograms Katana has 6.8K ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 83% of Nonograms Katana's written reviews are positive against 100% of Hashi Solver's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
Nonograms Katana versus Hashi Solver: the parameters behind the verdict, then further details
ParameterNonograms KatanaHashi Solver
PriceFreeFree
Rating4.8 (6.8K ratings) — better4.0 (1 ratings)
Positive reviews82.9% of reviews100.0% of reviews — better
Number of ratings6.8K — better1
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.2
Further details — not scored
Size27 MB2 MB
Age rating12+4+
DeveloperUcdevs Interaction DOOStephen Lardieri

Customer experience

Nonograms Katana

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

Hashi Solver

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

Hashi Solver

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Nonograms Katana

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

Hashi Solver

One-time2
  • Larger Puzzles$2.99
  • High Resolution Images$4.99

Questions

Is Nonograms Katana free?
Nonograms Katana is free to download, with in-app purchases available.
Is Hashi Solver free?
Hashi Solver is free to download, with in-app purchases available.
Which has better reviews, Nonograms Katana or Hashi Solver?
Nonograms Katana is rated higher. Nonograms Katana averages 4.8 out of 5 from 6.8K ratings, while Hashi Solver averages 4.0 from 1 ratings.
Do Nonograms Katana or Hashi Solver have ads?
Neither Nonograms Katana nor Hashi Solver shows ads.
Which is updated more often, Nonograms Katana or Hashi Solver?
Nonograms Katana ships an update every 3 months, and Hashi Solver every 3 months. Most recently, Nonograms Katana was updated on October 24, 2026 and Hashi Solver on October 24, 2026.

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