Building Puzzle 2 vs Kurotto Extreme
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Building Puzzle 2
A logic puzzle game with over 10,000 stages. It features hints within the grid to help players solve challenges. All stages are available to play for free.
- Over 10,000 stages
- In-grid hints
- Logic puzzle gameplay
- Free to play all stages
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Building Puzzle 2 is logical puzzle game. The difference between building puzzle and this puzzle is only one. There is hint in the grid. In this app, there are more than 10000 stages. Of course, you can play the all stages in free!
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
Screenshots
Verdict
The clearest difference is review sentiment: Kurotto Extreme at 100% against Building Puzzle 2's 50%. Building Puzzle 2's advantage is ads (none vs shown) and update cadence (every 9 days vs every 22 months). 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.
Building Puzzle 2 ships an update every 9 days, Kurotto Extreme every 22 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Building Puzzle 2 | Kurotto Extreme |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 9 days — better | Every 22 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 14 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Yuki Fujimoto | Christophe Baranger |
Customer experience
Building Puzzle 2
Kurotto Extreme
In-app purchases
Building Puzzle 2
No in-app purchases
Kurotto Extreme
No in-app purchases
Questions
Is Building Puzzle 2 free?
Is Kurotto Extreme free?
Do Building Puzzle 2 or Kurotto Extreme have ads?
Which is updated more often, Building Puzzle 2 or Kurotto Extreme?
Other comparisons
