Comparison

Nono Blocks Formula vs DuoDom

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

Head to head
About

Nono Blocks Formula

This logic puzzle game challenges players to fill in grid cells based on numerical hints to reveal a hidden pattern. With over 100 levels of increasing difficulty, it sharpens problem-solving skills. Enjoy intuitive tap controls on mobile or mouse support on Mac.

Highlights
  • Over 100 logic puzzles
  • Beginner to advanced difficulty
  • Intuitive tap controls
  • Mouse support for Mac
  • VoiceOver accessibility
  • Leaderboards for competition
Features
Read full description

Nono Blocks Formula is a nonogram logic puzzle game. Use the number clues beside each row and above each column to determine which cells should be dark and which should be crossed out. Each number represents a group of consecutive dark cells. Fill every cell correctly to complete the puzzle. When a row or column matches its clues, the hint numbers turn green. On lower-density levels, the clues may allow more than one possible arrangement. Green means that a row or column fits its clues, but the full grid must still match the puzzle's solution. If all hints are green but the level is not complete, revisit places where more than one arrangement was possible and try a different one. More than 100 levels become progressively more challenging as you advance. Play with simple tap controls on iPhone and iPad, or use a mouse on Mac. Key Features: - Over 100 levels, from beginner to advanced difficulty. - Simple and intuitive controls. - Leaderboards to track your progress and compete with others. - Full VoiceOver support for accessible play. Whether you're new to nonograms or an experienced solver, Nono Blocks Formula offers increasingly challenging logic puzzles as you progress.

About

DuoDom

Features
Read full description

DuoDom — the laid-back sliding puzzle in pixel-art retro style. A board fills with stones marked 1 to 6. Slide them across the empty squares so that two matching stones land right next to each other — they vanish as a pair. Clear the whole board to win. HOW TO PLAY • Tap a stone to select it. • Tap an empty neighbouring square to slide the stone there. • When two matching stones meet edge to edge, they disappear. • Clear the entire board — level done. Every puzzle is guaranteed solvable — a built-in solver verifies each level before you see it. No frustration, no dead ends. FEATURES • Hundreds of solver-checked puzzles • Pixel-art graphics in lovingly crafted retro style • Smooth animations at 60 FPS • Per-level highscores — how few moves can you do it in? • Trophy system for special achievements • Built-in tutorial • Pause with settings for volume and language • Synthesized sound effects straight from the game • Works in any screen size, portrait and landscape 20 LANGUAGES DuoDom auto-detects your device language and lets you switch live anytime: Deutsch, English, Français, Español, Italiano, Português, Nederlands, Polski, Čeština, Slovenčina, Magyar, Română, Türkçe, Русский, Українська, Ελληνικά, Svenska, Dansk, 日本語, 中文. Perfect for a coffee break, a train ride, or winding down after work. Slide, combine, win. DuoDom — side by side, gone for good.

Screenshots

Nono Blocks Formula4 screens
DuoDom3 screens

Verdict

The call

The clearest difference is in-app purchases: DuoDom at none against Nono Blocks Formula's 1. DuoDom also leads on ads (none vs shown). On price, update cadence, 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

Both are free to download. Nono Blocks Formula sells 1 one-off in-app purchase. DuoDom asks for nothing beyond the download.

UpkeepUpdate frequency

Nono Blocks Formula ships an update every 3 weeks, DuoDom monthly. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

Scorecard2 real differences · 8 level
Nono Blocks Formula versus DuoDom: the parameters behind the verdict, then further details
ParameterNono Blocks FormulaDuoDom
PriceFreeFree
Rating5.0 (6 ratings) — better—
Positive reviews90.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 3 weeks — betterMonthly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size9 MB1 MB
Age rating4+4+
Developerx2line.com LLCJosef Sejrek

In-app purchases

1 purchases

Nono Blocks Formula

One-time1
  • Check Solution$0.99
None

DuoDom

No in-app purchases

Questions

Is Nono Blocks Formula free?
Nono Blocks Formula is free to download, with in-app purchases available.
Is DuoDom free?
DuoDom is free to download, with no in-app purchases.
Do Nono Blocks Formula or DuoDom have ads?
Nono Blocks Formula shows ads; DuoDom does not.
Which is updated more often, Nono Blocks Formula or DuoDom?
Nono Blocks Formula ships an update every 3 weeks, and DuoDom monthly. Most recently, Nono Blocks Formula was updated on October 16, 2026 and DuoDom on October 17, 2026.

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