# Oku: Sudoku — Your personal Sudoku book

> Infinite Sudoku puzzles with daily challenges and rewards. (iPhone/iPad app by Jonathan Ben Haim.)

- Source: https://appshunter.io/ios/app/oku-sudoku/id6757077544 (this page in markdown: same URL + `.md`)
- Developer: [Jonathan Ben Haim](https://appshunter.io/developer/1864343084)
- Category: Games, Puzzle
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 43 MB
- Languages: American English
- Released: 2026-01-14
- Data updated: 2026-09-23
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/oku-sudoku/id6757077544/reviews.md

## What is Oku?

Enjoy Sudoku with daily challenges, rewards, and many ways to customize your game. Simple, relaxing, and completely free of ads.

## Key features

- Infinite Sudoku puzzles
- Daily challenges
- Unique reward system
- Logic training
- Mind exercise

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Oku Starter Pack | $2.99 | one-time |
| Diamond Pack – Medium | $1.99 | one-time |
| Diamond Pack – Extra Large | $6.99 | one-time |
| Diamond Pack – Small | $0.99 | one-time |
| Diamond Pack – Large | $3.99 | one-time |
| Oku Premium Pack | $4.99 | one-time |


## Is Oku safe?

Not enough ratings yet to assess Oku.

## Is Oku legit?

Oku: Sudoku has limited verification signals. The AppsHunter Legitimacy Score for Oku is 58 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/oku-sudoku/id6757077544/reviews.md

### 5/5 — Best Sudoku App

*2026-07-24*

Definitely worth checking out if you enjoy Sudoku! It's simple, easy to use, and the puzzles are actually fun. It's become one of my go-to apps whenever I have a few spare minutes.

**Developer response:** Thank you! Knowing Oku has become one of your go-to apps for a little puzzle break means a lot to me. I’m so glad you’re enjoying it! 😊

## Frequently asked questions about Oku

### What kind of puzzles does Oku offer?

Oku offers an infinite supply of Sudoku puzzles. It also includes daily challenges to keep your mind engaged.

### Is Oku suitable for all ages?

Oku has an age rating of 4+, making it suitable for a wide range of players looking to train their minds.

### Can I play Oku offline?

The provided data does not specify if Oku can be played offline. However, its focus on puzzles suggests it may be playable without an internet connection.

### Does Oku have ads?

No, Oku does not contain advertisements, providing an uninterrupted puzzle-solving experience.

### What devices can I play Oku on?

Oku is available on iPhone, iPad, and iPod devices, offering a versatile gaming experience across Apple platforms.

### How often is Oku updated?

The latest version of Oku was released on August 1, 2026, indicating active development and regular updates.

### What makes Oku's reward system unique?

Oku features a unique reward system designed to enhance the puzzle-solving experience for logic fans.

### What is the user rating for Oku?

Oku has an exceptional rating of 5.0 stars based on one review, indicating high user satisfaction.

## Version history (last 5 releases)

### 4.0.5 — 2026-09-12

• New daily rewards! Collect more diamonds each day, with a bigger gift on day 7.
• A smoother interface with improved navigation and visual polish.
• Bug fixes for resetting progress and restoring purchases.

### 4.0.4 — 2026-09-10

Minor bug fixes

### 4.0.3 — 2026-09-08

• A fresh navigation bar makes exploring Oku easier.
• A refreshed Oku Shop, with daily gifts and a livelier home for Pepino.
• Quickly resume your puzzle with a new board preview.
• Hold an empty area during play to temporarily hide notes.
• Improved customization and fixed guest progress saving.

### 4.0.2 — 2026-09-02

- Fixed bugs
- Better reading for Hints
- Fixed a level in Impossible that seemed "too easy" for players.

### 4.0.1 — 2026-09-01

- Added colors to hints

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| --- | --- | --- | --- |
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| [Sudoku Kensei](https://appshunter.io/ios/app/sudoku-kensei/id6760353100) | 5.0 (2) | Free | Games |
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| [Sudoku Tegdur: Classic Puzzle](https://appshunter.io/ios/app/sudoku-tegdur-classic-puzzle/id6761088154) | 5.0 (1) | Free | Games |

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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 2026-09-23.*