Comparison

KUROSUKE Ext vs RotaStone

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

Head to head
About

KUROSUKE Ext

Features
Read full description

It is a game to erase all the croskets. If you touch Crosket, you can erase all the croskets connected in the same color. At this time, it can not be erased without the same color crotch on the top, bottom, left, and right. If you can not erase it, a crotch will appear. The game is over when all cross marks have been erased. The time until then is registered as a grade. There are 3 difficulties.

About

RotaStone

Features
Read full description

RotaStone is a fun and addictive, very difficulut puzzle game! Use rotation switches to place stones into colored hexes as same as stone's color. The difficulty level increases progressively as the level goes up. Can you clear all the levels? ā—‡ How to play: - Tap the rotation switch to rotate the stones around the stone. - When you tap the rotation switch, the stones placed around it will rotate around the rotation switch. - When all colored hexes have stones of the same color, the level is cleared. ā—‡ Features: - One-finger controls - Various unique stages - No penalties! No time limit! You can enjoy it at your own pace.

Screenshots

KUROSUKE Ext2 screens
RotaStone4 screens

Verdict

The call

The clearest difference is ads: KUROSUKE Ext at none against RotaStone's shown. RotaStone's advantage is update cadence (every 2 months vs every 10 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

KUROSUKE Ext ships an update every 10 months, RotaStone every 2 months. The most recent releases landed on September 18, 2026 and September 9, 2026 respectively.

Scorecard2 real differences Ā· 4 level
KUROSUKE Ext versus RotaStone: the parameters behind the verdict, then further details
ParameterKUROSUKE ExtRotaStone
PriceFreeFree
Update frequencyEvery 10 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size26 MB60 MB
Age rating4+4+
Developerryo itouradiuthree Co., Ltd

In-app purchases

None

KUROSUKE Ext

No in-app purchases

None

RotaStone

No in-app purchases

Questions

Is KUROSUKE Ext free?
KUROSUKE Ext is free to download, with no in-app purchases.
Is RotaStone free?
RotaStone is free to download, with no in-app purchases.
Do KUROSUKE Ext or RotaStone have ads?
RotaStone shows ads; KUROSUKE Ext does not.
Which is updated more often, KUROSUKE Ext or RotaStone?
KUROSUKE Ext ships an update every 10 months, and RotaStone every 2 months. Most recently, KUROSUKE Ext was updated on September 18, 2026 and RotaStone on September 9, 2026.

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