Comparison

Sudoku vs Number Join

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

Head to head
About

Sudoku

Engage your mind with a variety of Sudoku puzzles, including classic and unique variations like Diagonal, Irregular, and OddEven. Offers a no-ads experience with features to aid gameplay and track progress. Perfect for logic puzzle enthusiasts seeking a mental challenge.

Highlights
  • Six Sudoku variations
  • No ads
  • Weekly bonus puzzles
  • Multiple difficulty levels
  • Graphic puzzle previews
  • Unlimited hints and undo
  • Dark Mode support
Features
Read full description

Play six different Sudoku variations in a single app! Start with classic Sudoku grids and advance to Diagonal Sudoku, Irregular Sudoku and OddEven Sudoku - each with a different look and a unique twist of brain challenging logic. Huge brain-bashing Mega Sudoku puzzles, also known as Monster Sudoku, are offered for iPad only. With its diverse variations and straightforward no-frills game design, Conceptis Sudoku brings a new dimension to Sudoku mobile gaming - on both iPad and iPhone. To help see the puzzle progress, graphic previews in the puzzle list show the progress of all puzzles in a volume as they are being solved. A Gallery view option provides these previews in a larger format. For more fun, Sudoku contains no ads and includes a Weekly Bonus section providing an extra free puzzle each week. PUZZLE FEATURES • 160 free Classic Sudoku and Sudoku variant puzzles • Variants include Mini, Diagonal, Irregular, OddEven and Mega • Extra bonus puzzle published free each week • Multiple difficulty levels from very easy to extremely hard • Grid sizes up to 16x16 • Puzzle library continuously updates with new content • Manually selected, top quality puzzles • Unique solution for each puzzle • Hours of intellectual challenge and fun • Sharpens logic and improves cognitive skills GAMING FEATURES • No ads • Unlimited check puzzle • Unlimited hints • Show conflicts during gameplay • Unlimited Undo and Redo • Pencilmarks feature for solving hard puzzles • Autofill pencilmarks mode • Highlight Excluded Squares option • Lock number on keypad option • Concurrently playing and saving multiple puzzles • Puzzle filtering, sorting and archiving options • Dark Mode support • Graphic previews showing puzzles progress as they are being solved • Portrait and landscape screen support (iPad only) • Track puzzle solving times • Backup & restore puzzle progress to iCloud ABOUT Conceptis Sudoku variations have also become popular under other names such as Sudoku by Dave Green, Sudoku 12x12, Sudoku 16x16, Jigsaw Sudoku, Nonomino Sudoku, Squiggly Sudoku, Sudoku X and many more. All puzzles in this app are produced by Conceptis Ltd. - the leading supplier of logic puzzles to printed and electronic gaming media all over the world. On average, more than 20 million Conceptis puzzles are solved each day in newspapers, magazines, books and online as well as on smartphones and tablets across the world. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.conceptispuzzles.com/index.aspx?uri=info/doc/220

About

Number Join

A logic puzzle game where you fill in missing numbers sequentially. Solve puzzles by connecting numbers horizontally, vertically, or diagonally across various difficulty levels. Features include hints, auto-save, and time tracking.

Highlights
  • Fill missing numbers sequentially
  • Horizontal, vertical, and diagonal connections
  • 5 difficulty levels
  • Over 500 levels
  • Check function for wrong numbers
  • Auto-save unfinished levels
  • Record best completion times
Features
Read full description

This game is a logic puzzle with simple rules. Your aim is to fill in the missing numbers, in sequential order, going horizontally, vertically, or diagonally. **** Features **** # Content - 5 difficulty levels - more than 500 levels # Features - "Check" function can highlight wrong numbers - option to enable automatically highlight wrong numbers - Auto-save the process of unfinished levels - Record best completion time for each level # Challenge - Game Center Achievements - Try to complete as many levels as possible

Screenshots

Sudoku4 screens
Number Join4 screens

Verdict

The call

The clearest difference is rating: Sudoku at 4.8 against Number Join's 4.2. Sudoku also leads on ads (none vs shown) and ratings volume (1.1K vs 59). Number Join's advantage is iOS requirement (13.0 vs 15.6). On price, review sentiment, update cadence 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. Sudoku sells 11 one-off in-app purchases and Number Join sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Sudoku holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Sudoku has 1.1K ratings behind it against 59, so its average is the more settled of the two. Written reviews point the same way: 95% of Sudoku's written reviews are positive against 89% of Number Join's.

UpkeepUpdate frequency

Sudoku ships an update every 3 months, Number Join every 5 months. The most recent releases landed on October 29, 2026 and October 23, 2026 respectively.

Scorecard4 real differences · 6 level
Sudoku versus Number Join: the parameters behind the verdict, then further details
ParameterSudokuNumber Join
PriceFreeFree
Rating4.8 (1.1K ratings) — better4.2 (59 ratings)
Positive reviews95.4% of reviews — better88.9% of reviews
Number of ratings1.1K — better59
Update frequencyEvery 3 months — betterEvery 5 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size10 MB8 MB
Age rating4+4+
DeveloperConceptis Ltd.Stanley Lam

Customer experience

Sudoku

All ratings1,129 ratings
Positive96.0%
Neutral3.0%
Negative1.0%
Written reviews241 reviews
Positive95.4%
Neutral2.5%
Negative2.1%

Number Join

All ratings57 ratings
Positive86.0%
Neutral5.3%
Negative8.8%
Written reviews27 reviews
Positive88.9%
Neutral0.0%
Negative11.1%

Bugs and requests

Sudoku

Reported bugs

3 issues
  • Crashes or freezes
  • Incompatibility with older devices
  • Lack of color blind support

Requested features

6 requests
  • Dark mode option
  • More free/variety puzzle packs
  • Ability to discard used puzzles
  • Hint feature to help when stuck
  • Ability to highlight numbers in different colors
Show 1 more
  • Chain strategy explanation

Number Join

Not enough reviews yet to summarise bugs or requests.

In-app purchases

11 purchases

Sudoku

One-time11
  • Classic Easy 1$0.99
  • Diagonal Medium 1$1.99
  • Irregular Medium 1$1.99
Show 8 more
  • Classic Medium 1$1.99
  • Classic Hard 1$1.99
  • Diagonal Hard 1$1.99
  • Irregular Hard 1$1.99
  • OddEven Hard 1$1.99
  • OddEven Medium 1$1.99
  • Classic Devil 1$2.99
  • Mega Medium 1$3.99
1 purchases

Number Join

One-time1
  • Upgrade to Full Version$0.99

Questions

Is Sudoku free?
Sudoku is free to download, with in-app purchases available.
Is Number Join free?
Number Join is free to download, with in-app purchases available.
Which has better reviews, Sudoku or Number Join?
Sudoku is rated higher. Sudoku averages 4.8 out of 5 from 1.1K ratings, while Number Join averages 4.2 from 59 ratings.
Do Sudoku or Number Join have ads?
Number Join shows ads; Sudoku does not.
Which is updated more often, Sudoku or Number Join?
Sudoku ships an update every 3 months, and Number Join every 5 months. Most recently, Sudoku was updated on October 29, 2026 and Number Join on October 23, 2026.

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