Comparison

Nonogram vs Chalk

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

Head to head
About

Nonogram

Features
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Relax, focus, and reveal hidden pictures one square at a time with Nonogram Puzzle. Use the number clues beside each row and column to determine which cells should be filled. Mark empty cells, complete the grid, and uncover the hidden pixel art. Start with simple puzzles and progress toward larger, more challenging boards. Whether you want a quick brain exercise or a relaxing puzzle session, there is always another picture waiting to be discovered. FEATURES โ€ข 2,000 nonogram puzzles โ€ข Easy, medium, and hard difficulty levels โ€ข A new daily puzzle challenge โ€ข Simple fill and cross controls โ€ข Helpful hints when you get stuck โ€ข Stars and level progression โ€ข Multiple colorful visual themes โ€ข Light and dark appearance options โ€ข Clean, relaxing, ocean-inspired design โ€ข Play at your own pace Nonogram puzzles are also known as Picross, Griddlers, picture cross, and Japanese crossword puzzles. Each level combines logic, concentration, and pixel art in a satisfying puzzle experience. Download Nonogram Puzzle and start revealing the hidden pictures today. Support: iammustafakucukkoc@gmail.com

About

Chalk

Features
Read full description

Chalk is a small collection of logic puzzles and board games: sudoku, nonograms, slitherlink, shikaku and number paths, with four board games for two. No accounts, no sign up, no timers pushing you along. Open it and play. NINE GAMES, 2643 PUZZLES Sudoku. 412 puzzles across 4x4, 6x6 and the full 9x9, rated easy to expert. Pencil marks are built in, and placing a number tidies it out of every square it rules out. Nonograms, the puzzle also called picross, griddlers or hanjie. 125 picture puzzles, 5x5 up to 15x15. The numbers say how the filled squares are grouped, and a picture comes out of it. Slitherlink, sometimes called loop the loop or fences. 125 loop puzzles, 5x5 up to 10x10. Draw one closed loop so that every number has exactly that many lines around it. Stitch. 515 number path puzzles. Draw one line from 1 to the last number, passing through every square exactly once. Boards run from a gentle 3x3 up to a proper 8x8. Shikaku, the Japanese rectangle puzzle. 1466 puzzles, 4x4 up to 10x10. Cut the grid into rectangles, one number in each, where the number says how many squares that patch covers. Tic Tac Toe (noughts and crosses), Four in a Row (connect four), Dots and Boxes and Hex. Four board games for two people, and you decide who the second seat belongs to. TWO PHONES, NO INTERNET Play someone sitting next to you on their own phone. Chalk finds the other phone over wireless, or sends the moves as a short chirp through the speaker, which works between any two phones with no account, no pairing code and no connection of any kind. Or pass one phone between you. Or play Chalk itself, at Easy, Fair or Ruthless. Who opens is a setting rather than a rule: you, Chalk, or take turns, where the loser of the last round starts the next. EVERY PUZZLE IS CHECKED All 2643 puzzles were generated and then verified by computer to have exactly one solution. No guessing, no dead ends, no puzzle that turns out to be impossible halfway through. BUILT TO BE CALM Two looks: bright marks on a dark board, or cream and sand. Both follow your phone's light and dark setting. Hide the clock if timing feels like pressure. Turn off the buzz if you would rather it stayed quiet. Keep your favourites at the top of the list. Every puzzle remembers your best time and picks up exactly where you left off, down to the clock. Every board game keeps the running score. PLAY ANYWHERE There is no account and nothing to sign up for. Every puzzle is already on your phone, so the games work in a tunnel, on a plane, or with the wifi off. WHAT IT COSTS Chalk is free, and shows advertising. One payment removes the ads for good. It is not a subscription: nothing renews, nothing expires, and there is nothing to cancel. The unlock follows your store account, so Restore purchase brings it back on a new phone. Terms of use: https://chalkpuzzles.app/terms Privacy policy: https://chalkpuzzles.app/privacy Contact: https://chalkpuzzles.app/contact Questions of any kind go to support@chalkpuzzles.app, and a person reads them.

Screenshots

Nonogram4 screens
Chalk4 screens

Verdict

The call

The clearest difference is in-app purchases: Nonogram at none against Chalk's 1. On price, update cadence, ads and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Chalk sells 1 one-off in-app purchase. Nonogram asks for nothing beyond the download.

UpkeepUpdate frequency

Nonogram ships an update every 4 days, Chalk every 2 days. The most recent releases landed on October 20, 2026 and October 29, 2026 respectively.

Scorecard1 real difference ยท 5 level
Nonogram versus Chalk: the parameters behind the verdict, then further details
ParameterNonogramChalk
PriceFreeFree
Update frequencyEvery 4 daysEvery 2 days โ€” better
AdsYesYes
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.1 โ€” better16.4
Further details โ€” not scored
Size34 MB75 MB
Age rating4+4+
DeveloperMustafa KUCUKKOCCatalin Gabriel Miron

In-app purchases

None

Nonogram

No in-app purchases

1 purchases

Chalk

One-time1
  • Ad free Chalk$0.99

Questions

Is Nonogram free?
Nonogram is free to download, with no in-app purchases.
Is Chalk free?
Chalk is free to download, with in-app purchases available.
Do Nonogram or Chalk have ads?
Both Nonogram and Chalk show ads.
Which is updated more often, Nonogram or Chalk?
Nonogram ships an update every 4 days, and Chalk every 2 days. Most recently, Nonogram was updated on October 20, 2026 and Chalk on October 29, 2026.

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