Kurotto Extreme vs Circle Run
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
- 350+ challenges across 7 difficulty levels
- 7 new daily challenges
- Autosave progress
- No time limits
- 2 global leaderboards
- Full tutorial
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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
Circle Run
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Jump on the helix circles and reach the finish line.
Screenshots
Verdict
The clearest difference is ads: Circle Run at none against Kurotto Extreme's shown. Circle Run also leads on update cadence (every 3 days vs every 22 months) and iOS requirement (10.0 vs 13.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Kurotto Extreme ships an update every 22 months, Circle Run every 3 days. The most recent releases landed on October 5, 2026 and October 27, 2026 respectively.
| Parameter | Kurotto Extreme | Circle Run |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 22 months | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 22 MB | 95 MB |
| Age rating | 4+ | 4+ |
| Developer | Christophe Baranger | Omer Bashir |
In-app purchases
Kurotto Extreme
No in-app purchases
Circle Run
No in-app purchases
Questions
Is Kurotto Extreme free?
Is Circle Run free?
Do Kurotto Extreme or Circle Run have ads?
Which is updated more often, Kurotto Extreme or Circle Run?
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