Comparison

Kurotto Extreme vs Tough 10

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

Head to head
About

Kurotto Extreme

A logic puzzle game originating from Japan with simple rules for hours of engaging challenges. Fill empty cells based on numbered circles indicating continuous black cells, with no time limits and autosave functionality.

Highlights
  • 350+ challenges across 7 difficulty levels
  • 7 new daily challenges
  • Autosave progress
  • No time limits
  • 2 global leaderboards
  • Full tutorial
Read full description

This game originated in Japan. The rules are really simple so you could enjoy hours of challenges, from easy to complex difficulty. Fill in some of the empty cells with the following rules: 1. The number in a circle indicates the total number of continuous black cells extending from it, vertically and horizontally. 2. Dragon circles may have any number of black cells around them. 3. Cells with circles cannot be colored. This game includes: + 350 challenges across 7 levels of difficulty. + 7 new daily challenges (1 per level of difficulty) + Autosave of your progress solving a grid so you could pause and resume as you wish. + No time limits to complete a challenge + 2 global leaderboards + Full Tutorial + and many more capabilities

About

Tough 10

Features
Read full description

Tough 10 is an addictive offline number puzzle game. Find the same number in colorful tiles and combine them to grow up. It's easy to play for everyone, however it could also drive genius crazy. How to Play Tough 10 (Tough Ten) 1. The game starts with 5x5 grid color blocks with numbers. 2. Tap on at least 2 adjacent blocks with same number to select. 3. Tap again to merge the selected blocks and increase the number. 4. The board will be refilled after each merge. 5. Repeat the steps to get higher number. 6. You achieve the objective if you get 10 or higher. 7. When there is no more adjacent blocks with the same number, it’s game over. Game Features of Tough 10 (Tough Ten) · Offline game that doesn't need wifi internet connection · High quality puzzle game with auto save function · Tap to merge tiles and try to get 10 · Endless puzzle game Tough 10 ( Tough Ten ) is for players of the following types: · Want to download offline games · Want to play puzzle games in 2048 style · Want to challenge logic skills and brain power · Want to download high quality number puzzle games Have fun with Tough 10 ( Tough Ten ) and enjoy the offline and addictive number puzzle game!

Screenshots

Kurotto Extreme4 screens
Tough 104 screens

Verdict

The call

The clearest difference is update cadence: Tough 10 at daily against Kurotto Extreme's every 22 months. 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

Kurotto Extreme ships an update every 22 months, Tough 10 daily. The most recent releases landed on October 5, 2026 and October 18, 2026 respectively.

Scorecard1 real difference · 9 level
Kurotto Extreme versus Tough 10: the parameters behind the verdict, then further details
ParameterKurotto ExtremeTough 10
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 22 monthsDaily — better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size22 MB16 MB
Age rating4+4+
DeveloperChristophe BarangerMustafa Kandemir

In-app purchases

None

Kurotto Extreme

No in-app purchases

None

Tough 10

No in-app purchases

Questions

Is Kurotto Extreme free?
Kurotto Extreme is free to download, with no in-app purchases.
Is Tough 10 free?
Tough 10 is free to download, with no in-app purchases.
Do Kurotto Extreme or Tough 10 have ads?
Both Kurotto Extreme and Tough 10 show ads.
Which is updated more often, Kurotto Extreme or Tough 10?
Kurotto Extreme ships an update every 22 months, and Tough 10 daily. Most recently, Kurotto Extreme was updated on October 5, 2026 and Tough 10 on October 18, 2026.

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