Comparison

Mellow Blocks vs Sudoku

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

Head to head
About

Mellow Blocks

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Five hand-painted worlds. Fifty levels. Six companions waiting to meet you. Mellow Blocks is a cozy puzzle adventure โ€” a journey from the soft drift of the Clouds to the edge of Infinity, told through watercolor worlds and the friends you meet along the way. โ€” A JOURNEY UPWARD โ€” Rise through the Clouds, the Stars, the Moon, and a sparkling Galaxy, all the way to Infinity. Five hand-painted watercolor worlds, 10 levels each, with a boss waiting at the top. Meet Mellow, Cloud, Stella, Luna, Cosmo, and Nova โ€” each with their own story to share as you climb. โ€” THREE WAYS TO PLAY โ€” - Dreamscape โ€” a 50-level Adventure Map across 5 rising worlds, with characters, dialogue, and story moments - Gravity โ€” clear a line and watch the blocks above tumble down into chain clears - Classic โ€” endless, calming play; clear lines and chase your best score โ€” CLEVER POWER-UPS โ€” Bomb, Lightning, Color Bomb, and Multiplier โ€” plus combo bonuses, color-harmony rewards, ghost previews, and wildcard blocks to keep every board fresh. โ€” MORE THAN A PUZZLE โ€” - Soft landings โ€” no harsh "Game Over," just a gentle nudge to try again - Soothing music and floating, theme-based particles - Six visual themes and seasonal shifts through the year โ€” MADE FOR EVERYONE โ€” - Fully localized in 13 languages (including right-to-left Arabic) - Color-blindโ€“friendly palettes and customization โ€” PLAY ANYWHERE โ€” No Wi-Fi, no servers, no pressure. Mellow Blocks plays fully offline โ€” perfect for commutes, breaks, or winding down before bed. One-time Remove Ads available if you'd like an uninterrupted flow. Whether you've got 30 seconds or 30 minutes, this is the cozy puzzle you'll keep coming back to. โ€” MADE BY BEMO LABS โ€” An independent studio in Istanbul. Every world, character, and line of code was made by one person, for people who like their puzzles calm. Got feedback or a feature idea? Write to us: hello@bemolabs.com

About

Sudoku

Features
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Sudoku that teaches you to solve, not just a grid to fill in. SCAN A PUZZLE FROM PAPER Are you stuck in a Sudoku ? Point your camera at a sudoku scan it and see how to unlock the next move. Recognition runs entirely on your device using a neural network trained specifically for this app โ€” nothing is uploaded, and it works with no internet connection at all. Because no scanner is perfect, every scan stops at a review screen before it reaches the board. You see the photo with the detected grid drawn over it, all 81 cell crops next to what was read from each one, and the confidence behind every digit. Anything misread can be corrected with a tap. Cells that repeat a digit in their row, column, or box are flagged in red, so a bad scan can never become an unplayable board. UNDERSTAND EVERY MOVE Ask for a solution and you don't just get answers โ€” you get reasoning. Each digit is placed one step at a time, and the technique behind it is named and explained in plain English as it happens: โ€ข Naked Single โ€” a cell has only one candidate left โ€ข Hidden Single โ€” a digit fits only one cell in its row, column, or box โ€ข Pointing Pair and Box/Line Reduction โ€” locked candidates โ€ข Naked Pair, Hidden Pair, Naked Triple โ€ข X-Wing and XY-Wing โ€ข Nishio โ€” trial and contradiction, used only as a last resort Pause the solver at any point to study the board yourself, step backwards and forwards through the reasoning, then resume when you're ready. The running commentary makes it a tutor rather than a cheat button. PUZZLES THAT ARE ACTUALLY FAIR Every generated puzzle is checked to have exactly one solution โ€” never two, never ambiguous. Each is also graded by the hardest technique it genuinely requires, and any puzzle that can only be finished by trial and error is thrown away. If you reach a wall, there is always a logical way through. Five levels, from a single match to a full volcano: Easy, Casual, Medium, Hard, Expert. The harder tiers are harder to think about, not merely emptier. BUILT FOR COMFORTABLE PLAY โ€ข Pencil marks, with automatic clean-up as you place digits โ€ข Auto-notes to fill in candidates for a cell โ€ข Safe mode highlights a conflict the moment you create one โ€ข Hint button points out a cell that has only one possibility left โ€ข Full undo and redo history โ€ข Four colour themes: Midnight Focus, Warm Paper, Forest Minimal, Slate Contrast โ€ข Portrait and landscape โ€ข Progress stats for solved puzzles and help used PRIVATE BY DESIGN No account. No ads. No tracking. No analytics. No network access of any kind โ€” the app has no code to reach the internet. Your photos are read on your device and never leave it.

Screenshots

Mellow Blocks4 screens
Sudoku4 screens

Verdict

The call

The clearest difference is in-app purchases: Sudoku at none against Mellow Blocks's 1. Sudoku also leads on ads (none vs shown). Mellow Blocks's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence 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. Mellow Blocks sells 1 one-off in-app purchase. Sudoku asks for nothing beyond the download.

UpkeepUpdate frequency

Mellow Blocks ships an update every 6 weeks, Sudoku monthly. Both last shipped on October 31, 2026.

Scorecard3 real differences ยท 3 level
Mellow Blocks versus Sudoku: the parameters behind the verdict, then further details
ParameterMellow BlocksSudoku
PriceFreeFree
Update frequencyEvery 6 weeksMonthly โ€” better
AdsYesNo โ€” better
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.0 โ€” better17.0
Further details โ€” not scored
Size211 MB4 MB
Age rating4+4+
DeveloperOnder GencPIETRO ANDREA BRAMBILLA

In-app purchases

1 purchases

Mellow Blocks

One-time1
  • Remove Ads$3.99
None

Sudoku

No in-app purchases

Questions

Is Mellow Blocks free?
Mellow Blocks is free to download, with in-app purchases available.
Is Sudoku free?
Sudoku is free to download, with no in-app purchases.
Do Mellow Blocks or Sudoku have ads?
Mellow Blocks shows ads; Sudoku does not.
Which is updated more often, Mellow Blocks or Sudoku?
Mellow Blocks ships an update every 6 weeks, and Sudoku monthly. Most recently, Mellow Blocks was updated on October 31, 2026 and Sudoku on October 31, 2026.

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