# Kudoku - Killer Sudoku Puzzle — Daily Math Logic Game · No Ads

> Killer Sudoku puzzles with cage sum clues for deductive reasoning. (iPhone/iPad app by 亮 鲁.)

- Source: https://appshunter.io/ios/app/kudoku-killer-sudoku-puzzle/id6810310538 (this page in markdown: same URL + `.md`)
- Developer: [亮 鲁](https://appshunter.io/developer/1707802381)
- Category: Entertainment, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 17.0 · 39 MB
- Languages: American English, Arabic, Czech, Danish, Dutch, Finnish, French (France), German (Germany), Greek, Hebrew and 20 more
- Released: 2026-09-19
- Data updated: 2026-11-06
- Monetization: freemium

## What is Kudoku?

Killer Sudoku with no ads, no account and full offline play. Every dotted cage tells you what its digits add up to — that single clue turns guesswork into pure deduction, and an interactive tutorial has you solving in minutes.

NEW TO KILLER SUDOKU?
An interactive tutorial teaches the rules on a real board. Fill every row, column and 3×3 box with 1–9, make each cage hit its target sum, and never repeat a digit inside a cage. A couple of minutes and you are solving.

25,000 PUZZLES, FIVE TRACKS
Easy, Medium, Hard, Expert and Master — 5,000 validated boards each, graded by the reasoning a board actually needs, so difficulty climbs instead of jumping. Every level is a fresh board, and every track is free to play in order.

A DAILY CHALLENGE WORTH KEEPING
One new puzzle a day, a streak to protect and a badge for every month you complete. Missed dates stay in the calendar.

HELL MODE — FREE FOR EVERYONE
One run. Five lives for the whole descent, not five per floor. A correct digit scores, a longer combo multiplies what it scores, and clearing a floor without a single slip doubles the bonus. A wrong digit costs a life and your combo — never points. Nineteen designed floors, and then it keeps going deeper. Premium adds two lives — seven instead of five — but no hints and no Auto Notes, for anyone. How deep you get earns a rank you keep and a poster you can share.

BUILT FOR THINKING
• Cage-aware pencil notes and hints that reveal the next logical digit
• A consistency wall that fills in on every day you play
• Best times, solve counts and personal trends
• Plays offline, saves every game, no account required
• No ads, ever

KUDOKU PREMIUM (OPTIONAL)
Unlimited hints (free play includes 3 per day), one-tap Auto Notes, matching-note highlight, last-cell hints, your full pace history, all 25,000 levels unlocked instantly with unlimited mistakes, extra board themes and iCloud sync across your devices.

Premium is a monthly or yearly auto-renewing subscription, or a one-time Lifetime purchase. Eligible new subscribers can try monthly Premium free for 3 days or yearly Premium free for 7 days. Prices are shown in the app before purchase and vary by region. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the current period ends, and your Apple Account is charged within 24 hours before renewal. Manage or cancel anytime in Apple Account settings. Restore purchases from the paywall.

One cage at a time. Download Kudoku.

Privacy Policy: https://gentleflow.github.io/legal/kudoku/privacy/
Terms of Use: https://gentleflow.github.io/legal/kudoku/terms/

## Key features

- Killer Sudoku puzzles with cage sum clues
- Interactive tutorial for new players
- 25,000 puzzles across five difficulty tracks
- Daily challenge with streak tracking
- Offline play and no account required
- Cage-aware pencil notes and hints
- Hell Mode with unique scoring and progression

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Kudoku Premium Yearly | $7.99 | per year |
| Kudoku Premium Monthly | $1.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Kudoku Premium Lifetime | $14.99 | one-time |


## Is Kudoku safe?

Not enough ratings yet to assess Kudoku.

## Is Kudoku legit?

Kudoku - Killer Sudoku Puzzle appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Kudoku is 70 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about Kudoku

### What is Kudoku?

Kudoku is a Killer Sudoku puzzle game. It combines traditional Sudoku rules with an additional clue: each dotted cage on the board indicates the sum of the digits within it, requiring deductive reasoning to solve.

### How do I learn to play Kudoku?

Kudoku includes an interactive tutorial that teaches the rules on a real game board. You'll learn to fill rows, columns, and 3x3 boxes with digits 1-9, ensure each cage hits its target sum, and avoid repeating digits within a cage.

### Does Kudoku have ads?

No, Kudoku is ad-free. The developers state 'No ads, ever,' ensuring an uninterrupted puzzle-solving experience.

### Can I play Kudoku offline?

Yes, Kudoku is designed to play offline. It also saves every game and does not require an account, offering flexibility for players on the go.

### What are the difficulty levels in Kudoku?

Kudoku offers five difficulty tracks: Easy, Medium, Hard, Expert, and Master. Each track contains 5,000 validated boards, graded by the reasoning required, ensuring a smooth progression in challenge.

### What is Hell Mode in Kudoku?

Hell Mode is a free challenge in Kudoku where players have a limited number of lives for an entire run. Correct digits score points, combos multiply scores, and clearing floors without errors grants bonuses. It offers a high-stakes, deep-diving experience.

### What does Kudoku Premium offer?

Kudoku Premium, available via subscription or a one-time purchase, offers unlimited hints, one-tap Auto Notes, matching-note highlighting, last-cell hints, full pace history, instant unlocking of all 25,000 levels, extra board themes, and iCloud sync.

### How much does Kudoku Premium cost?

Kudoku Premium is offered as a monthly subscription for $0.99 (with a 3-day free trial) or a yearly subscription for $5.99 (with a 7-day free trial). A one-time Lifetime purchase option is also available. Prices may vary by region.

## Version history (last 5 releases)

### 1.4 — 2026-11-03

This update adds support for 11 languages.

Svenska
עברית
Dansk
Norsk
Čeština
Română
Magyar
Ελληνικά
Suomi
Português (Portugal)
Slovenčina

### 1.3.4 — 2026-10-25

• Made for iPhone Duo: unfold for a larger Sudoku board, compact number keys and controls that adapt as you open and close your phone.
• Back and close buttons stay easy to reach below the status area on the cover display and in inner-display landscape.
• Improved theme previews and Settings layouts on smaller screens.
• More reliable iCloud progress syncing, with local backups and clearer sync status.

### 1.3.3 — 2026-10-20

Hell Mode now follows your light or dark appearance — bright by day, dark by night — and its screens have a subtle paper texture. Plus small fixes and stability improvements.

### 1.3.2 — 2026-10-12

The This Week leaderboard in Hell Mode is fixed: every run you finish this week now counts, not only new personal bests. Plus small fixes and stability improvements.

### 1.3.1 — 2026-10-10

Small fixes and stability improvements, so every puzzle runs smoothly.

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- [Ninefold - Sudoku Logic Puzzle](https://appshunter.io/ios/app/ninefold-sudoku-logic-puzzle/id6792068500)

All apps by 亮 鲁: https://appshunter.io/developer/1707802381

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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 2026-11-06.*