Hard Sudoku vs KemoDoku
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Hard Sudoku
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This app is built for Sudoku players who crave a real challenge. Every puzzle is hard—no warm-ups, no filler, no fluff. You’re allowed up to five mistakes per puzzle; make a sixth, and the grid resets. It’s unforgiving, but fair. Puzzles are grouped into themed packs, each one designed to test your logic, focus, and endurance. To unlock the next pack, you’ll need to complete every grid in the current one—no skipping ahead. There are no hints, no shortcuts, and no mercy. Just pure deduction, steady progress, and the deep satisfaction of solving something genuinely tough.
KemoDoku
This logic game offers a charming twist on classic Sudoku, replacing numbers with adorable animal icons. It provides a variety of difficulty levels and modes suitable for both beginners and experienced players, all playable offline. Enjoy hours of engaging brain training with delightful animal graphics.
- Classic and animal icon Sudoku
- Multiple difficulty levels
- Offline play support
- Beautiful animal graphics
- Brain training and logic development
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Sudoku with Animals – the charming logic game for kids and adults! Dive into the world of puzzles: this Sudoku app combines the classic number game with adorable animal icons. Whether you’re a beginner or an experienced Sudoku pro – you’ll find the perfect challenge here. Train your brain, sharpen your focus, and enjoy hours of animal-themed puzzle fun. Game Features: • Classic & Animal Sudoku – solve puzzles in the traditional 9x9 format or discover creative variants with animal icons. • Multiple difficulty levels – from easy to hard, ideal for kids, teens, and adults. • Play offline – enjoy Sudoku anytime, anywhere, even without an internet connection. • Beautiful design – colorful animal graphics like cats, dogs, horses, and zoo animals make every puzzle unique. Why play Sudoku? Sudoku is one of the best brain-training games. It boosts memory, logic, and concentration. With animals, puzzling becomes even more fun: • Engaging brain exercise for kids and adults • Stress relief through relaxing puzzles • Improves logical thinking and problem-solving • Perfect for quick sessions or longer puzzle adventures Who is this app for? • Sudoku fans looking for a creative new twist • Families who love solving puzzles together • Kids who want to learn logic and patience in a playful way • Adults who enjoy puzzle and brain-teaser games • Animal lovers who want brain training with extra fun Sudoku, animals, puzzles, brain training – all in one app! Solve exciting logic games, discover cute animal designs, and see how much fun Sudoku can be. Whether it’s cats, dogs, pandas, or other animals – your next puzzle adventure is waiting!
Screenshots
Verdict
Hard Sudoku and KemoDoku are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Hard Sudoku costs $0.99 and KemoDoku $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Hard Sudoku | KemoDoku |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | — | 4.5 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | — | Every 2 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 16.6 — better |
| Further details — not scored | ||
| Size | 4 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | H Valeur | Martin Hanske |
In-app purchases
Hard Sudoku
No in-app purchases
KemoDoku
No in-app purchases









