Comparison

Nonogram vs PixelFlow

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

Head to head
About

Nonogram

This logic puzzle game challenges you to reveal hidden pictures by coloring cells based on number clues. It offers a vast library of puzzles with varying difficulty levels and features to aid gameplay, suitable for both new and experienced players.

Highlights
  • Over 10,000 free puzzles
  • Black-and-white and colored puzzles
  • Multiple grid sizes and difficulty levels
  • Auto error checking
  • Unlimited undo and hints
  • Save and continue progress
Features
Read full description

Popular and professional nonogram game All puzzles are tested by computer program Clear App graphics and rich functions Suitable for beginner and master HangXun Nonogram is a kind of picture logic game that was first invented by the Japanese in 1987. At first, the game was named after "お絵かきロジック", which means "drawing logic". Now Nonogram is known as nomogram, pictogram, Hanjie, Griddlers, Picross, Japanese Crosswords, Japanese Puzzles, Pic-a-Pix, "Paint by numbers" and other names. Nonogram game starts with tens of blank cells in a N x M grid, and these blank cells must be colored or left blank according to numbers at the side of the grid to reveal a hidden picture. In this puzzle type, 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 "3 6 2" would mean there are sets of three, six, and two filled squares, in that order, with at least one blank square between successive sets. Nonogram game rules are very simple, easy to get started. Even you are a beginner for the game, you can start to play it very easily. Whether you want to sharpen your mind or relax your heart, you should give this classic Nonogram game a try. More you play, your brain will become more active. During your commute, before you sleep ... enjoy downtime with brain training. Main Features: - Over 10000 Nonogram Puzzles, all are free - All puzzles are tested by computer program and have unique solution - Include not only Black-and-white Nonograms, but also colored Nonograms - All puzzles are sorted by groups from 5x5 to 50x50 - 7 difficulty levels are from beginner to Extreme - Easy keyboard tool-bar is for big size of nonograms - Freely download millions of puzzles from our server More Features: - Auto check the error - Unlimited undo and hint time - Two game modes, freely fill mode and error limit mode - Save game automatically, and continue it next time - Score ranking, daily challenge ranking - Auto fill X and completed lines - Suitable for phones and tablets - Clean and beautiful graphics - Audio effect Thanks for your selecting HangXun Nonogram Game! We will try our best to make the game better and better.

About

PixelFlow

Engage your mind with logic-based picture puzzles. Fill in squares based on number clues to reveal hidden images. Enjoy a calm, ad-free experience with hundreds of puzzles and daily challenges.

Highlights
  • Logic-based picture puzzles
  • Hundreds of puzzles
  • Daily puzzles
  • Themed picture packs
  • Offline play
  • No timer pressure
  • Ad-free experience
Features
Read full description

Color by logic. Reveal the picture. PixelFlow is a free-to-start, ad-free nonogram — the picture cross puzzle also known as a griddler or picross. The numbers along each row and column tell you which squares to fill. Work out the cells you can be sure of, fill them in, and a small picture quietly appears under your fingers. No ads. No data monetization. No pop-ups begging for your attention — ever. Just clean, quiet, thought-provoking and calming puzzles that respect your time. WHAT'S INSIDE - 150 logic-checked puzzles — each has a single logical solution, so you never have to guess. - 16 themed Picture Packs, from Garden, Voyage, and Tide all the way to Aurora, Meridian, and Frontier — every pack with its own mood and palette. - Hold HINT for a gentle nudge — it reveals just one row and column, never the whole answer. - No timer pressure, no countdown, no way to lose. Prefer a clean board? Turn the stopwatch off. - Plays entirely offline. A FREE PUZZLE EVERY DAY A new Daily Puzzle every day, free — a quiet ritual, and a streak if you want one. BEAUTIFUL ON iPAD On iPad, PixelFlow uses the space instead of stretching into it: the board, menus, and layouts are tuned for the larger screen, in portrait and landscape. HOW TO PLAY A clue like "3" means three filled squares in a row. "1 1" means one square, a gap, then one more. Cross-check the rows against the columns to find the squares that can only be one thing — and the picture builds itself. WHAT WE BELIEVE - No ads, ever. - Privacy-first. No data monetization. - Exercising your mind through puzzles is fun. - From a studio of puzzle aficionados who believe games should be worth your time. THE PUZZLE MASTER COLLECTION PixelFlow is part of the Puzzle Master Collection, alongside ColorFlow, ColorFlow: Worlds, Juliet's Dilemma, and more from our growing family of calm, ad-free games. The Collection is free on the App Store — one download, every game, free to try. The Starter and Grove packs and the Daily Puzzle are free for good; when you want the rest, unlock every Picture Pack once and keep them forever — or choose the optional Puzzle Master Pass and play the whole collection. Fully localized in 12 languages — menus, puzzle packs, and even the picture names. SUBSCRIPTION INFORMATION Puzzle Master Pass (optional auto-renewable subscription): available weekly, monthly, or annually — the exact price for your region is shown at purchase. Unlocks the Puzzle Master collection of puzzle games while active. Renews automatically unless canceled at least 24 hours before the end of the current period; manage or cancel any time in your Account settings. Restore Purchases is available on the store screen. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://jcy.studio/privacy

Screenshots

Nonogram4 screens
PixelFlow4 screens

Verdict

The call

The clearest difference is in-app purchases: Nonogram at none against PixelFlow's 4. Nonogram also leads on ratings volume (648 vs 1) and iOS requirement (13.0 vs 17.0). PixelFlow's advantage is ads (none vs shown) and update cadence (every 9 days vs every 4 months). On price, monetization model and device support 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. PixelFlow sells 4 in-app purchases, starting at $1.99 per 7 days. Nonogram asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PixelFlow holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Nonogram has 648 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Nonogram ships an update every 4 months, PixelFlow every 9 days. The most recent releases landed on October 20, 2026 and October 5, 2026 respectively.

Scorecard6 real differences · 4 level
Nonogram versus PixelFlow: the parameters behind the verdict, then further details
ParameterNonogramPixelFlow
PriceFreeFree
Rating4.7 (648 ratings)5.0 (1 ratings) — better
Positive reviews90.7% of reviews—
Number of ratings648 — better1
Update frequencyEvery 4 monthsEvery 9 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size16 MB12 MB
Age rating4+4+
Developer俊杰 龚JCY Advisors

Customer experience

Nonogram

All ratings621 ratings
Positive94.7%
Neutral2.3%
Negative3.1%
Written reviews493 reviews
Positive90.7%
Neutral3.7%
Negative5.7%

PixelFlow

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Nonogram

Reported bugs

3 issues
  • Glitches causing errors
  • Sensitive touch controls
  • Ads covering gameplay on larger puzzles

Requested features

6 requests
  • Add undo/erase function
  • Improve touch controls and sensitivity
  • Add zoom/pinch feature
  • Improve visibility of numbers on larger puzzles
  • Add ability to save/resume puzzles
Show 1 more
  • Implement color-blind accessibility options

PixelFlow

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Nonogram

No in-app purchases

4 purchases

PixelFlow

Subscriptions2
  • Puzzle Master Pass — Weekly$1.997 Days
  • Puzzle Master Pass — Yearly$49.991 Year
One-time2
  • All Picture Packs$2.99
  • Puzzle Master$12.99

Questions

Is Nonogram free?
Nonogram is free to download, with no in-app purchases.
Is PixelFlow free?
PixelFlow is free to download, with in-app purchases available.
Which has better reviews, Nonogram or PixelFlow?
PixelFlow is rated higher. Nonogram averages 4.7 out of 5 from 648 ratings, while PixelFlow averages 5.0 from 1 ratings.
Do Nonogram or PixelFlow have ads?
Nonogram shows ads; PixelFlow does not.
Which is updated more often, Nonogram or PixelFlow?
Nonogram ships an update every 4 months, and PixelFlow every 9 days. Most recently, Nonogram was updated on October 20, 2026 and PixelFlow on October 5, 2026.

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