Comparison

Sudoku⁹ vs Sudoku Explorer

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

Head to head

Sudoku⁹

Number Puzzle

Free

🎮 Games

★ 5.02 ratingsView app →

Sudoku Explorer

Exercise your brain by Sudoku

Free

🎮 Games

No ratingsView app →

About

Sudoku⁹

This logic-based number-placement puzzle challenges players to fill grids with digits 1-9. Each row, column, and 3x3 subgrid must contain all digits without repetition. It's a classic brain teaser for honing deductive reasoning skills.

Highlights

Number placement logic
Row and column constraints
3x3 region rules
Deductive reasoning challenge
Classic brain teaser

Features

Read full description

Fill in the empty squares with digits so that each row, each column and each 3×3 region contains all of the digits from 1 to 9.

About

Sudoku Explorer

Features

Read full description

Sudoku Explorer is an exciting twist on the classic Sudoku puzzle game! Embark on a journey through a variety of challenging Sudoku grids, from easy to expert levels. As you progress, unlock new themes, backgrounds, and special puzzle packs. Whether you're a Sudoku novice or a seasoned expert, Sudoku Explorer offers a fun and relaxing experience with intuitive controls and stunning visuals. Solve puzzles, explore new levels, and challenge yourself in this addictive number puzzle adventure!

Screenshots

Sudoku⁹4 screens

Sudoku Explorer4 screens

Verdict

The call

The clearest difference is in-app purchases: Sudoku⁹ at none against Sudoku Explorer's 8. Sudoku⁹ also leads on ads (none vs shown). Sudoku Explorer's advantage is update cadence (weekly vs every 9 months) and iOS requirement (12.0 vs 14.0). On price 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. Sudoku Explorer sells 8 one-off in-app purchases. Sudoku⁹ asks for nothing beyond the download.

UpkeepUpdate frequency

Sudoku⁹ ships an update every 9 months, Sudoku Explorer weekly. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 5 level

Sudoku⁹ versus Sudoku Explorer: the parameters behind the verdict, then further details
Parameter	Sudoku⁹	Sudoku Explorer
Price	Free	Free
Rating	5.0 (2 ratings) — better	—
Number of ratings	2 — better	—
Update frequency	Every 9 months	Weekly — better
Ads	No — better	Yes
In-app purchases	No — better	Yes
Monetization	Free	—
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	14.0	12.0 — better
Further details — not scored
Size	1 MB	225 MB
Age rating	4+	4+
Developer	Alexander Berson	Thinking Game Limited

In-app purchases

None

Sudoku⁹

No in-app purchases

8 purchases

Sudoku Explorer

One-time8

240 Coins$0.99
Get 720 Coins!$4.99
Remove Ads$4.99

Show 5 more

Mega Bundle$9.99
Get 1500 Coins!$9.99
Get 2800 Coins!$19.99
Get 6200 Coins!$49.99
Get 13000 Coins!$99.99

Questions

Is Sudoku⁹ free?

Sudoku⁹ is free to download, with no in-app purchases.

Is Sudoku Explorer free?

Sudoku Explorer is free to download, with in-app purchases available.

Do Sudoku⁹ or Sudoku Explorer have ads?

Sudoku Explorer shows ads; Sudoku⁹ does not.

Which is updated more often, Sudoku⁹ or Sudoku Explorer?

Sudoku⁹ ships an update every 9 months, and Sudoku Explorer weekly. Most recently, Sudoku⁹ was updated on October 6, 2026 and Sudoku Explorer on October 3, 2026.