# Sudoku: Classic, Killer, Daily — Hints That Teach. Fewer Ads.

> Classic 9x9 Sudoku puzzle game with training and solver tools. (iPhone/iPad app by dowhiletrue s.r.o.)

- Source: https://appshunter.io/ios/app/sudoku-classic-killer-daily/id6745744473 (this page in markdown: same URL + `.md`)
- Developer: [dowhiletrue s.r.o](https://appshunter.io/developer/1773235395)
- Category: Games, Entertainment, Board, Puzzle
- Price: Free with in-app purchases
- Rating: 4.50/5 from 4 App Store ratings · 8 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 84 MB
- Languages: German (Germany), European Spanish, Slovak, American English, Italian, Japanese, Chinese (Simplified, China), Czech, Brazilian Portuguese, Polish and 2 more
- Released: 2025-05-13
- Data updated: 2026-10-25
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-classic-killer-daily/id6745744473/reviews.md

## What is Sudoku?

A calm, beautiful Sudoku that teaches you to solve — now with Killer Sudoku.

Play classic 9×9 Sudoku from Easy to Expert, take on the daily challenge, and try Killer Sudoku's cages and sums. When you're stuck, a smart hint shows the next logical move and explains why it works.

FEWER ADS, BY DESIGN
• Never an ad in the middle of a puzzle
• Never an ad after you win
• Premium removes every ad

HINTS THAT TEACH
• Step-by-step hints highlight exactly the cells that matter
• Learn real techniques: Naked and Hidden Singles, Pairs, Pointing Pairs, Box/Line Reduction
• Wrong numbers are caught so you can fix them first
• Guided Tutor mode with animated walkthroughs (Premium)

KILLER SUDOKU
• Classic rules plus cages: the numbers in each cage add up to its sum
• One free Easy Killer puzzle every day
• All Killer difficulties with Premium

PLAY YOUR WAY
• Auto-notes, pencil marks and automatic note clean-up
• Digit-first or cell-first input
• Remaining-number counts on the keypad
• Your rules: mistake limit, auto-check and hide timer
• Light and dark mode, plus Premium board themes
• Sounds and haptics you can switch off

BUILD A DAILY HABIT
• A fresh daily challenge with a free daily leaderboard
• Daily goal ring and streaks on your Home screen
• Pick up any game exactly where you left off
• Confetti and personal-best celebrations
• Time Attack and Game Center leaderboards

PLAY ANYWHERE
• Designed for iPhone and iPad
• Sign in with Apple to keep your progress across devices
• Available in 12 languages

SUDOKU PREMIUM
Zero ads, all Killer Sudoku puzzles, Guided Tutor hints, unlimited undo, board themes, the daily challenge archive, advanced stats and cloud sync.
• Yearly: $19.99 with a 7-day free trial
• Monthly: $3.99
Prices may vary by region.

Payment is charged to your Apple ID at confirmation of purchase (or when the free trial ends). Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your App Store account settings. Any unused portion of a free trial is forfeited when you purchase a subscription.

Terms of Use: https://sudokuoffline.com/terms-of-use-for-sudoku-app/
Privacy Policy: https://sudokuoffline.com/privacy-policy-for-sudoku-app/

## Key features

- Handcrafted puzzles across Easy, Medium, and Expert levels
- Daily Sudoku puzzles with streak tracking
- 50+ solving techniques and strategy trainer
- Global Sudoku Challenge tournaments
- Cloud sync and performance boosts
- Ad-free premium mode option
- Light and dark themes with notes mode

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Monthly | $3.99 | per month |
| Premium Yearly | $19.99 | per year |
| Premium Weekly | $0.99 | per 7 days |
| Premium Yearly | $29.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium Lifetime | $29.99 | one-time |
| Remove ads | $6.99 | one-time |


## Is Sudoku safe?

Not enough ratings yet to assess Sudoku.

## Is Sudoku legit?

Sudoku: Classic, Killer, Daily appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Sudoku is 78 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (8 of 8)

All indexed reviews: https://appshunter.io/ios/app/sudoku-classic-killer-daily/id6745744473/reviews.md

### 5/5 — simple but fun sudoku, love this version

*2025-07-08*

I love the dark thene, no irritiating ads. only issue is, can't get hints after making mistakes. but it looks soothing and fun.

**Developer response:** Thank you for your kind words! We’re glad you’re enjoying the dark theme and ad-free experience in our Sudoku. We appreciate your feedback about hints after mistakes and will consider this for future updates to make the game even more fun and helpful. Happy puzzling!

### 5/5 — MartinaH

*2025-05-29, version 1.1.3*

Super hra, precvičí logiku, appka ma príjemný vzhľad

### 5/5 — Martin

*2025-05-18, version 1.0*

Vynikajuca hra,prinutila porozmyslat

### 5/5 — Skvelé sudoku

*2025-05-16, version 1.0*

super, zabavila som sa

### 5/5 — Pekne sudoku

*2025-05-16, version 1.0*

Páčia sa mi farby a vzhľad aplikácie, tmavý režim je super.

### 5/5 — Sudoku with lovely UI and lot of features

*2025-05-14, version 1.0*

This Sudoku app offers a smooth and enjoyable puzzle experience with a beautifully designed user interface and intuitive controls. The game includes multiple difficulty levels, making it suitable for both beginners and experienced players. A handy pause feature allows you to take breaks without losing progress, which is perfect for solving puzzles at your own pace. Overall, the app delivers a polished and user-friendly experience that stands out among other Sudoku games.

### 5/5 — Dobré sudoku

*2025-05-14, version 1.0*

Tmavý režim je super.

### 5/5 — Super vzhľad

*2025-05-14, version 1.0*

Aplikácia má parádny vzhľad, je rýchla a úrovne su primerane zložité. Asi by som privítal možnosť vypnúť reklamy. Ale super

## Frequently asked questions about Sudoku

### Does 9x9 Sudoku Grid have ads?

Yes, 9x9 Sudoku Grid contains advertisements. Users can opt for the Ad-Free Premium Mode through a subscription to enjoy an uninterrupted experience.

### What are the subscription options for 9x9 Sudoku Grid?

9x9 Sudoku Grid offers a Premium Weekly subscription for $0.99 with a 3-day free trial, and a Premium Yearly subscription for $29.99 with a 7-day free trial.

### Can I play 9x9 Sudoku Grid offline?

Yes, 9x9 Sudoku Grid offers a full Sudoku Offline mode, ensuring your daily puzzle fun continues even without an internet connection.

### How does the Sudoku Solver in 9x9 Sudoku Grid work?

The built-in Sudoku Solver can be used for verification of your solutions or to learn advanced tactics by seeing step-by-step solutions.

### What is the age rating for 9x9 Sudoku Grid?

9x9 Sudoku Grid has an age rating of 4+, making it suitable for a wide range of players.

### How often is 9x9 Sudoku Grid updated?

The app was last updated on November 12, 2025, indicating active development and regular improvements.

### What devices can I play 9x9 Sudoku Grid on?

9x9 Sudoku Grid is supported on iPhone and iPad devices.

### Does 9x9 Sudoku Grid offer different difficulty levels?

Yes, 9x9 Sudoku Grid offers handcrafted puzzles across Easy, Medium, and Expert difficulty levels to cater to all players.

## Version history (last 5 releases)

### 2.0.0 — 2026-10-23

Sudoku 2.0 is our biggest update yet:
• NEW Killer Sudoku — one free Easy puzzle every day
• NEW Home screen with daily goal, streak and one-tap continue
• A quick setup builds your personal plan
• Auto-notes, digit-first input and remaining-number counts
• Your rules: mistake limit, auto-check, hide timer
• Board themes, sounds, haptics and personal-best celebrations
• Fewer ads: never mid-puzzle, never after a win
• Free daily leaderboard and 12 languages
Thanks for playing! A rating helps other puzzlers find us.

### 1.3.2 — 2025-11-12

NEW FEATURES:
• Daily Challenges - Fresh puzzle every day with streak tracking
• Time Attack Mode - Compete globally with timed challenges
• Smart Hints - Learn 50+ solving techniques, not just answers
• Special Events - Limited-time competitions with rewards
• Premium Subscription - Unlock ad-free experience & more

IMPROVEMENTS:
• Polished onboarding for new players
• Social sharing of victories
• Performance optimizations

Thank you for playing! Rate us 5 stars

### 1.3.1 — 2025-11-12

NEW FEATURES:
• Daily Challenges - Fresh puzzle every day with streak tracking
• Time Attack Mode - Compete globally with timed challenges
• Smart Hints - Learn 50+ solving techniques, not just answers
• Special Events - Limited-time competitions with rewards
• Premium Subscription - Unlock ad-free experience & more

IMPROVEMENTS:
• Polished onboarding for new players
• Social sharing of victories
• Performance optimizations

Thank you for playing! Rate us 5 stars

### 1.3.0 — 2025-11-08

NEW FEATURES:
• Daily Challenges - Fresh puzzle every day with streak tracking
• Time Attack Mode - Compete globally with timed challenges
• Smart Hints - Learn 50+ solving techniques, not just answers
• Special Events - Limited-time competitions with rewards
• Premium Subscription - Unlock ad-free experience & more

IMPROVEMENTS:
• Polished onboarding for new players
• Social sharing of victories
• Performance optimizations

Thank you for playing! Rate us 5 stars

### 1.2.1 — 2025-06-27

• Faster and smoother gameplay with improved startup time and responsiveness  
• Enhanced notes system for a more intuitive and reliable puzzle-solving experience  
• Seamless integration with leaderboards and achievements for better game progress tracking  
• New in‑app purchase to remove ads, with instant effect and restore support

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All apps by dowhiletrue s.r.o: https://appshunter.io/developer/1773235395

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-25.*