Comparison

Odd One vs Sudoku Sagax

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

Head to head
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.

About

Sudoku Sagax

Features
Read full description

Sudoku Sagax is Sudoku with real progression: solve levels, collect points and stars, climb through 19 fox ranks and take on everyone else in the daily challenge. Nona the vixen shows you around and explains every new puzzle type in half a minute. ELEVEN PUZZLE TYPES • Sudoku in four difficulties, from Easy to Extreme • Killer Sudoku, Kakuro, Nonogram, Crowns, Binary puzzle • X-Sudoku, Jigsaw Sudoku, Mini 6x6 and the big 16x16 • Foxhold: Sudoku as tower defence, our very own game Every type has its own levels, its own best times and its own leaderboard. DIFFICULTY BY TECHNIQUE In classic Sudoku, difficulty follows the techniques a puzzle calls for, not the number of givens: Easy needs singles, Extreme asks for X-Wing and XY-Wing. In the game you see which technique is needed, and after a win, what you solved it with. Every level of every puzzle type can be solved without guessing, with logic alone. DAILY CHALLENGE AND STREAKS One puzzle a day, the same for everyone, with its own daily leaderboard. Solve on consecutive days and your streak grows. Streak shields cover a missed day, so a busy calendar does not undo weeks of work. RANKS, STARS, ACHIEVEMENTS Every solved level counts towards your rank: 19 tiers from Fox Cub to Sagax Immortalis, each with its own fox portrait as a profile picture. Add up to three stars per level and 39 achievements. DUELS AGAINST FRIENDS After a win, challenge someone with a link: they play exactly the same puzzle against your time. No account needed on their side. THOUGHT THROUGH IN DETAIL • A tip that shows you the next technique instead of giving away the digit, plus notes, eraser and undo • Mistakes shown instantly or only at the end, your choice • Digit-first mode for fast entry • Light and dark themes, in ten languages • Puzzles are generated locally, so a dead spot will not stop you You can start playing without an account. With a free account (sign in with Google or Apple), your progress, streak and leaderboard position follow you across devices, including between app and browser. Sudoku Sagax is free, with no ads and no in-app purchases. The den is open. How far will you get?

Screenshots

Odd One4 screens
Sudoku Sagax4 screens

Verdict

The call

The clearest difference is update cadence: Sudoku Sagax at every 2 days against Odd One's weekly. Sudoku Sagax also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Odd One ships an update weekly, Sudoku Sagax every 2 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 6 level
Odd One versus Sudoku Sagax: the parameters behind the verdict, then further details
ParameterOdd OneSudoku Sagax
PriceFreeFree
Positive reviews91.7% of reviews—
Update frequencyWeeklyEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size23 MB17 MB
Age rating4+12+
DeveloperLucas HesseldieckVulpes Sagax UG (haftungsbeschränkt)

In-app purchases

None

Odd One

No in-app purchases

None

Sudoku Sagax

No in-app purchases

Questions

Is Odd One free?
Odd One is free to download, with no in-app purchases.
Is Sudoku Sagax free?
Sudoku Sagax is free to download, with no in-app purchases.
Do Odd One or Sudoku Sagax have ads?
Neither Odd One nor Sudoku Sagax shows ads.
Which is updated more often, Odd One or Sudoku Sagax?
Odd One ships an update weekly, and Sudoku Sagax every 2 days. Most recently, Odd One was updated on October 31, 2026 and Sudoku Sagax on November 6, 2026.

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