Comparison

SudokuSmart vs Odd One

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

Head to head
About

SudokuSmart

Engage with hundreds of number puzzles, master advanced solving techniques, and challenge friends. Offers daily, weekly, and monthly competitions with prizes. Includes a step-by-step helper and extensive customization options for all skill levels.

Highlights
  • Daily and Weekly Sudokus with global leaderboard
  • Monthly tournaments with prizes
  • Step-by-step solving method helper
  • 750+ permanent levels of all difficulties
  • Scan Sudoku from photos
  • Customization options
  • Sandbox mode with advanced tools
Features
Read full description

SudokuSmart is the perfect companion for anyone that enjoys number puzzles. Play hundreds of grids, learn the most advanced sudoku methods, and compete with your friends - all for free and without intrusive advertisements. Tailored to all skill levels, there is so much SudokuSmart has to offer: - Daily and Weekly sudokus connected to a global leaderboard -Monthly tournaments with prizes - Helper that provides step-by-step visual assistance on numerous solving methods - 750+ permanent levels of all difficulties, including Alternating-Inference-Chains - Exhaustive settings and customisation options - Sandbox with powerful tools (solving path, auto-solve, candidates, difficulty rating) Possibilities are endless: - Scan a sudoku from Photos and start playing in seconds - Send notification reminders to your friends to maintain their streaks’ - Unlock profile pictures and completion animations - Highlight specific candidates different colours The best part? SudokuSmart will keep improving, fueled by the feedback of players. Start playing now, and get your say in the next big update.

About

Odd One

A minimalist brain-training puzzle game where players identify the single tile that breaks a pattern in a grid. It offers four distinct game modes, including classic, arcade, endless, and daily challenges, all designed for calm, logical play.

Highlights
  • Four distinct game modes
  • Minimalist brain-training puzzles
  • Handcrafted and generated levels
  • No timer or time-based challenges
  • Color-assist mode for color-blind players
  • Light and dark mode
  • Calm piano soundtrack
Features
Read full description

A grid of symbols. One breaks the hidden rule - colour, shape, size, count or pattern. Tap exactly that one. That is all you need to know, and that is exactly why it is so much fun. FOUR MODES - Classic: 300 levels, no clock, pure logic. From level 151 the Extreme World adds patterns as a fifth dimension. - Arcade: a 60-second time bank. Right answers earn time, wrong ones cost it. - Endless: three lives, no time pressure. Four tiers up to Extreme. - Daily: five puzzles a day, the same for everyone worldwide. One chance. ON YOUR HOME SCREEN - A widget with your daily status and a playable mini puzzle - in three sizes FAIR AND CALM - Completely free: no ads, no tracking, no account, no paywall - A voluntary tip jar is the only source of income - it unlocks nothing - Calm piano music, light and dark design, alternate app icons - Colour assist for colour-blind players, full VoiceOver support - Game Center: leaderboards and 13 achievements, iCloud sync - Fully localised (EN, DE, FR, IT, ES) Odd One is the first game from earls studio, Munich.

Screenshots

SudokuSmart4 screens
Odd One4 screens

Verdict

The call

The clearest difference is review sentiment: SudokuSmart at 100% against Odd One's 92%. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SudokuSmart ships an update every 2 weeks, Odd One weekly. The most recent releases landed on September 18, 2026 and September 23, 2026 respectively.

Scorecard1 real difference · 9 level
SudokuSmart versus Odd One: the parameters behind the verdict, then further details
ParameterSudokuSmartOdd One
PriceFreeFree
Rating4.7 (18 ratings) — better—
Positive reviews100.0% of reviews — better91.7% of reviews
Number of ratings18 — better—
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPad — better
Requires iOS18.017.0 — better
Further details — not scored
Size32 MB23 MB
Age rating4+4+
DeveloperFelix JohnsonLucas Hesseldieck

Customer experience

SudokuSmart

All ratings18 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews13 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Odd One

Written reviews12 reviews
Positive91.7%
Neutral8.3%
Negative0.0%

In-app purchases

None

SudokuSmart

No in-app purchases

None

Odd One

No in-app purchases

Questions

Is SudokuSmart free?
SudokuSmart is free to download, with no in-app purchases.
Is Odd One free?
Odd One is free to download, with no in-app purchases.
Do SudokuSmart or Odd One have ads?
Neither SudokuSmart nor Odd One shows ads.
Which is updated more often, SudokuSmart or Odd One?
SudokuSmart ships an update every 2 weeks, and Odd One weekly. Most recently, SudokuSmart was updated on September 18, 2026 and Odd One on September 23, 2026.

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