Comparison

15 Puzzle Polygon vs K.O. Nonogram Pro

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

Head to head
About

15 Puzzle Polygon

Engage your mind with a variety of logic and puzzle games. Explore unique variations of classic puzzles like the 15-puzzle, tile matching, and color-based challenges. Offers numerous levels and modes to test your thinking skills.

Highlights
  • Extended 15-puzzle variations
  • Hexagonal and triangular boards
  • Tile matching with various shapes
  • Color-based logic puzzles
  • Maze and rotating puzzles
  • Nonogram and number puzzles
Features
Read full description

This APP include some simple and interesting puzzles. Each have some modes and levels. All need to think and select. The n-puzzle : Extended the classic 15-Puzzle to triangle and hexagon. Added fixed blocks and irregular board mode. Hexagon Slide: 15 puzzle with hexagonal board and triangular sliding blocks. Maze 15 Puzzle: It combines a maze with a 15 puzzle. Tile matching puzzle: The board consists of sticks, triangles, squares or hexagons. Each have Five board size and More block shape types. Just drag the block and drop to the empty place of board. when a line(Horizontal, vertical, diagonal) is filled with the blocks, they will disappear. Unified Color: Click to make all polygons have same color. More polygons will change the color when you click ones. There are three shapes(triangle, square, hexagon) and each have some patterns and six levels. Rotating Color Puzzle: Click to rotate color blocks to put them in right place. There are three shapes(triangle, square, hexagon) and each have six levels. Cyclic Color Blocks: Slide the color blocks circularly to make the color same horizontally or vertically and horizontally. Including memory mode which hide the color when you sliding. Time Traveler: Rotate clockwise to make time same. Very difficult. Dyed Chessboard: Turning the chessboard into same color within a limited number of steps. Nonogram Iteration: New nonogram with three types of boards. Nine Tripod Cauldrons: Make all rows or columns no same painting Rotate Number Puzzle: Rotate to make sum same as the center. Double-Sided Game: Slide to sorting the number on two side board.. This APP have 44 puzzles of color. Each have some stages with infinite levels. Just Click or Drag to play.

About

K.O. Nonogram Pro

This app provides instant solutions and solving steps for Nonogram puzzles. It supports grids from 5x5 to 50x50 and offers features like cloud backup and printing capabilities. Enjoy an ad-free experience with unlimited prompts and access to all puzzles.

Highlights
  • Instant puzzle solutions
  • Unlimited prompts
  • Unlock all puzzles
  • Print puzzles
  • Cloud backup
  • Supports 5x5 to 50x50 grids
Features
Read full description

K.O. Nonogram Pro: 1. Permanent ad-free; 2. Unlimited prompts; 3. Unlock all selected puzzles; 4. Print all puzzles(no watermark in preview); 5. Cloud backup; ------------------------------ Get nonogram answers / solving steps immediately. It supports 5~50 grid nonogram. There is a rich online nonogram store, support print puzzle. --------------- The grid of squares must be either filled in black or marked with X. Beside each row of the grid are listed the lengths of the runs of black squares on that row. Above each column are listed the lengths of the runs of black squares in that column. Go to find all black squares.

Screenshots

15 Puzzle Polygon4 screens
K.O. Nonogram Pro4 screens

Verdict

The call

The clearest difference is price: 15 Puzzle Polygon at Free against K.O. Nonogram Pro's $9.99. K.O. Nonogram Pro's advantage is in-app purchases (none vs 1) and update cadence (every 6 days vs every 6 weeks). On 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

CostPrice · In-app purchases · Ads · Monetization

15 Puzzle Polygon is free to download; K.O. Nonogram Pro costs $9.99 up front. 15 Puzzle Polygon sells 1 one-off in-app purchase. K.O. Nonogram Pro asks for nothing beyond the download.

UpkeepUpdate frequency

15 Puzzle Polygon ships an update every 6 weeks, K.O. Nonogram Pro every 6 days. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
15 Puzzle Polygon versus K.O. Nonogram Pro: the parameters behind the verdict, then further details
Parameter15 Puzzle PolygonK.O. Nonogram Pro
PriceFree — better$9.99
Rating5.0 (3 ratings) — better—
Positive reviews—0.0% of reviews
Number of ratings3 — better—
Update frequencyEvery 6 weeksEvery 6 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size19 MB28 MB
Age rating12+4+
Developer振华 许又瑞 韦

Customer experience

15 Puzzle Polygon

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

K.O. Nonogram Pro

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

1 purchases

15 Puzzle Polygon

One-time1
  • Full Version$2.99
None

K.O. Nonogram Pro

No in-app purchases

Questions

Is 15 Puzzle Polygon free?
15 Puzzle Polygon is free to download, with in-app purchases available.
Is K.O. Nonogram Pro free?
K.O. Nonogram Pro costs $9.99, with no in-app purchases.
Do 15 Puzzle Polygon or K.O. Nonogram Pro have ads?
Both 15 Puzzle Polygon and K.O. Nonogram Pro show ads.
Which is updated more often, 15 Puzzle Polygon or K.O. Nonogram Pro?
15 Puzzle Polygon ships an update every 6 weeks, and K.O. Nonogram Pro every 6 days. Most recently, 15 Puzzle Polygon was updated on October 18, 2026 and K.O. Nonogram Pro on October 24, 2026.

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