Killer Sudoku vs PitaBlock 5x5
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Killer Sudoku
This logic puzzle game combines elements of Sudoku and Kakuro. Fill the grid with numbers while ensuring the sum of numbers in designated cages matches the corner value. Offers multiple difficulty levels and game modes for all players.
- 80,000+ logic puzzles
- 9 difficulty levels
- Daily Challenge mode
- Free hints
- Auto-check for mistakes
- Player rankings
- Color themes
Read full descriptionHide full description
Killer sudoku (also named sumdoku, addoku, cross-sum or samunamupure) is a logical puzzle game that combines elements of sudoku and kakuro. So its rules are like the classic sudoku very much. Your goal is to fill the grid with numbers like in classic sudoku and also make sure the sum of numbers in cages (areas separated by dotted lines) is equal to the number in the upper left corner of that cage. If you are interested in playing number games or math puzzle games, this Killer Sudoku is exactly for you! Killer Sudoku may be a little bit harder than a classic sudoku puzzle game. But we offer 9 balanced difficulty levels for beginners and advanced players. Even you didn't play Killer Sudoku before, you'll become a Killer Sudoku master in no time. How to play it? The objective is to fill the grid with numbers from 1 to 9 in a way that the following conditions are met. 1. Each row, column and block contain each number exactly once. 2. The sum of all numbers in a cage must match the small number printed in its corner. 3. No number appears more than once in a cage. Main Features: 1. Include more than 80,000 puzzles, and all are tested by program. 2. Contain several game modes: Daily Challenge, Game Levels, Trophies Collection. 3. The game offers 9 difficulty levels that are suitable for both beginners and masters. 4. Use free hints when you are stuck. 5. Use auto-check to see the mistakes in real-time. 6. Take part in the ranking, and compete with other players. 7. Long press and lock a number, use for multiple cells, you can enable it in settings. More Features: - Color themes, select your favorite color. - Unlimited Undo. - Auto-save game and continue it next time. - Auto-notes for all the cells. - Statistics, record all your progress. - Timer, you can disable it in settings. - Support phone and tablets. Thanks for your selecting our Killer Sudoku game, please install it free, train your brain, and enjoy your happy time!
PitaBlock 5x5
Read full descriptionHide full description
PitaBlock 5x5 is a simple, satisfying puzzle where you fit pieces perfectly on a 5×5 board. Enjoy intuitive drag & drop with magnetic snapping and cell highlighting so you always know where a piece can go. Arrange pieces freely off the board, too. Stuck? Watch a short ad to reveal up to 3 color‑coded, numbered hints. Features • 30 handcrafted stages with increasing challenge • Great feel: drag & drop, magnetic snap, clear highlights • Free arrangement in the off‑board area • Hint system: watch an ad to reveal up to 3 placements (color‑coded & numbered) • Audio & haptics for satisfying feedback • Stage select & progress; resume from cleared stages • Offline friendly (ads/hints require network) How to Play 1. Drag a piece toward the board 2. It snaps when aligned; target cells highlight 3. Fill all cells to clear the stage Great for • Quick sessions with crisp, tactile gameplay • Fans of logic and block‑fitting puzzles • Anyone who enjoys a clean, minimal puzzle experience
Screenshots
Verdict
The clearest difference is update cadence: PitaBlock 5x5 at daily against Killer Sudoku's every 4 months. Killer Sudoku's advantage is iOS requirement (13.0 vs 18.1). On price, ads, 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.
Killer Sudoku ships an update every 4 months, PitaBlock 5x5 daily. The most recent releases landed on September 17, 2026 and February 1, 2026 respectively.
| Parameter | Killer Sudoku | PitaBlock 5x5 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (182 ratings) — better | — |
| Positive reviews | 92.5% of reviews | — |
| Number of ratings | 182 — better | — |
| Update frequency | Every 4 months | Daily — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 18.1 |
| Further details — not scored | ||
| Size | 32 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | 俊杰 龚 | Mamiko Tsukamoto |
Bugs and requests
Killer Sudoku
Reported bugs
5 issues- Errors in high-level games
- Unplayable Czech translation
- Dashed lines are too light
- App does not rotate when charging
- Forced errors due to invalid Sudokus
Requested features
11 requests- Slight color/design adjustments for legibility
- Advertising close button on the edge
- Auto-Complete feature
- Ability to add multiple hints in one cross stroke
- Make dotted lines bolder
Show 6 moreShow fewer
- Alert when an incorrect number is placed
- Level between medium and hard
- Ability to play horizontally
- Dark mode option
- Cloud save/Google integration
- Swipe to input numbers
PitaBlock 5x5
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Killer Sudoku
No in-app purchases
PitaBlock 5x5
No in-app purchases









