Choco abacus vs Killer Sudoku by Sudoku.com
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Choco abacus
Learn and master mental calculation with an engaging abacus game. Features a friendly tutorial and a simple, fun game system that allows you to unlock new stages as you play.
- Easy to learn abacus mechanics
- Friendly tutorial for beginners
- Simple and fun game system
- Unlock new stages through gameplay
- Mental calculation practice
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Play the best Abacus game in the world! * Easy to learn Abacus * Friendly tutorial * Simple and fun game system * Play and get more stages
Killer Sudoku by Sudoku.com
Engage your mind with this number puzzle game, offering thousands of levels and daily challenges. It provides a unique twist on classic sudoku with cage-based sum puzzles, suitable for all skill levels. Hints and notes are available to help you master the game.
- Thousands of Killer Sudoku levels
- Daily challenges with unique trophies
- Seasonal events for special medals
- Hints and notes for assistance
- Enhanced gameplay for all skill levels
- Brain-training puzzles
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Enjoy an engaging Killer Sudoku experience! Jump into enhanced gameplay, solve tons of puzzles, train your brain, and have fun! Discover the new brain-training puzzle from the developer of Sudoku.com! Killer Sudoku by Sudoku.com is great for both beginners and advanced players. Although Killer Sudoku is harder than classic sudoku, we made it accessible for players of all skill levels. With its enhanced gameplay, it's easy to follow the game rules and become a sudoku master in no time. Explore Killer Sudoku and discover a refreshing take on the classic paper-and-pencil sudoku puzzle. What you get: * Killer Sudoku puzzles to expand your sudoku experience. * Thousands of levels to solve. * Daily challenges to win unique trophies. * Seasonal events to get unique medals. * Hints and notes to guide you when you get stuck. * Tons of gameplay to challenge your brain. * New game from a top developer! How to play: * Fill all rows, columns, and 3x3 regions with numbers exactly like classic sudoku. * Every cell is part of a cage, indicated by dotted lines. * Make sure the cells can be added up to the sum in the upper left corner of the cage. * The sum of all numbers of each 3x3 region, row or column always equals to 45. * Numbers cannot repeat within cages, a single row, column, or 3x3 region. Dive into the world of Killer Sudoku! Play anywhere, anytime!
Screenshots
Verdict
The clearest difference is review sentiment: Choco abacus at 88% against Killer Sudoku by Sudoku.com's 45%. Choco abacus also leads on in-app purchases (none vs 1) and iOS requirement (9.0 vs 15.0). Killer Sudoku by Sudoku.com's advantage is rating (4.7 vs 3.2) and ratings volume (219K vs 5). On price, update cadence, ads 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. Killer Sudoku by Sudoku.com sells 1 one-off in-app purchase. Choco abacus asks for nothing beyond the download.
Killer Sudoku by Sudoku.com holds the better App Store score, 4.7 against 3.2. That said, the two scores are not equally well evidenced: Killer Sudoku by Sudoku.com has 219K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 88% of Choco abacus's written reviews are positive against 45% of Killer Sudoku by Sudoku.com's, so the app with the better star average is not the one people write more warmly about.
Choco abacus ships an update monthly, Killer Sudoku by Sudoku.com every 2 months. The most recent releases landed on November 2, 2026 and November 10, 2026 respectively.
| Parameter | Choco abacus | Killer Sudoku by Sudoku.com |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (5 ratings) | 4.7 (219K ratings) — better |
| Positive reviews | 87.5% of reviews — better | 44.9% of reviews |
| Number of ratings | 5 | 219K — better |
| Update frequency | Monthly — better | Every 2 months |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 107 MB | 237 MB |
| Age rating | 4+ | 12+ |
| Developer | Park Jisang | Easybrain Ltd |
Customer experience
Choco abacus
Killer Sudoku by Sudoku.com
Bugs and requests
Choco abacus
Not enough reviews yet to summarise bugs or requests.
Killer Sudoku by Sudoku.com
Reported bugs
5 issues- Incorrect puzzle solutions
- Scoring and stats issues
- Screen orientation problems
- Game freezing and crashing
- Unresponsive controls
Requested features
6 requests- Option to toggle number combinations
- Ability to lock correct numbers
- Improved hint system
- Customizable font and color options
- Progress sync between devices
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- Difficulty level adjustments
In-app purchases
Choco abacus
No in-app purchases
Killer Sudoku by Sudoku.com
- Killer Sudoku No Ads$14.99
Questions
Is Choco abacus free?
Is Killer Sudoku by Sudoku.com free?
Which has better reviews, Choco abacus or Killer Sudoku by Sudoku.com?
Do Choco abacus or Killer Sudoku by Sudoku.com have ads?
Which is updated more often, Choco abacus or Killer Sudoku by Sudoku.com?
Other comparisons
