# BiDoku — Puzzle with binary numbers

> Logic puzzle game using binary numbers and grid deduction. (iPhone/iPad app by Job Sierkstra.)

- Source: https://appshunter.io/ios/app/bidoku/id6759069902 (this page in markdown: same URL + `.md`)
- Developer: [Job Sierkstra](https://appshunter.io/developer/1674438160)
- Category: Games, Puzzle
- Price: Free with in-app purchases
- Rating: 1.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 17+
- Requires: iOS 26.0 · 32 MB
- Languages: American English
- Released: 2026-03-05
- Data updated: 2026-07-23
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/bidoku/id6759069902/reviews.md

## What is BiDoku?

BiDoku: Think in Binary

Welcome to BiDoku, a unique logic puzzle game where binary numbers meet brain-teasing strategy.
Fill the grid with 0s and 1s, convert binary into decimal, and match row and column targets using pure logic. Every move matters. Every puzzle has a single solution.
If you love Sudoku, number puzzles, or brain challenges, BiDoku offers a completely fresh twist.

How It Works

Each row and column represents a binary number.
Your goal:
- Place 0s and 1s in the grid
- Match the decimal targets
- Use logical deduction to solve the puzzle
- Complete the grid perfectly to win
Simple rules. Deep strategy.

Features

• Multiple difficulty levels
• Clean and modern design
• Optional helper modes
• Dynamic target tracking
• Smart hint system
• Track your best times
• Hard mode with grouped targets for advanced players
• Designed for both beginners and logic masters

Train Your Brain

BiDoku improves:
- Logical reasoning
- Binary number understanding
- Pattern recognition
- Strategic thinking
It’s perfect for puzzle fans, math enthusiasts, students learning binary, or anyone who loves a smart mental workout.

Why BiDoku?

Unlike traditional number puzzles, BiDoku blends:
-Binary logic
-Mathematical thinking
-Classic grid deduction
The result is a fresh, satisfying, and addictive puzzle experience.
Think in 0s and 1s.
Master binary logic.
Challenge your mind.
Download BiDoku and start solving today.

## Key features

- Binary number puzzles
- Grid deduction gameplay
- Multiple difficulty levels
- Helper modes
- Smart hint system
- Best time tracking
- Hard mode with grouped targets

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| BiDoku Premium | $1.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/bidoku/id6759069902/reviews.md

### 1/5 — Immediately Turned Off

*2026-03-19*

A double ad (a long on at that) on the very first puzzle before even being able to see if your answer is correct? No thanks.

## Frequently asked questions about BiDoku

### What is BiDoku?

BiDoku is a logic puzzle game where players fill a grid with 0s and 1s. The goal is to match decimal targets by converting binary numbers, using logical deduction to solve each puzzle.

### How does BiDoku work?

Each row and column in BiDoku represents a binary number. Players must place 0s and 1s to match the given decimal targets, employing logical deduction to complete the grid perfectly.

### What are the difficulty levels in BiDoku?

BiDoku offers multiple difficulty levels, including a hard mode with grouped targets for advanced players. This ensures the game is suitable for both beginners and logic masters.

### Does BiDoku have ads?

No, BiDoku does not contain advertisements. The game is free to play and offers in-app purchases.

### What skills does BiDoku help improve?

BiDoku is designed to improve logical reasoning, understanding of binary numbers, pattern recognition, and strategic thinking. It provides a smart mental workout for players.

### Is BiDoku available on multiple devices?

Yes, BiDoku is designed for both iPhone and iPad devices, offering a consistent experience across Apple's mobile platforms.

### When was BiDoku last updated?

The latest version of BiDoku, version 2.1, was last updated on March 16, 2026. This indicates regular updates to the game.

### What is the age rating for BiDoku?

BiDoku has an age rating of 17+. This suggests the game may contain content or complexity more suited to older players.

## Version history (last 5 releases)

### 2.2 — 2026-07-10

REBRANDING: JoMi Apps has become JoSi Apps. Minor bug fixes.

### 2.1 — 2026-03-16

In this update, we ensured to:

- Decrease the difficulty level of the daily puzzles
- Save the daily puzzle progress (cells positions are locked after closing the app)
- Other minor bug fixes (leaderboard bug)

### 2.0 — 2026-03-14

Welcome to BiDoku 2.0:

- Daily Puzzles: New brain-teasing challenges every day!
- Leaderboard: Compete globally and see how you rank against other players.
- Improved Tutorial: Clearer explanations help you master BiDoku faster.
- Review Prompt: Easily share your experience and progress.
- Bug Fixes & Performance Improvements for a smoother gameplay experience.

### 1.2 — 2026-03-07

In this new update, we:

- Made changes to the layout accustomed to light mode.
- Made sure to limit interstitial ads.

### 1.1 — 2026-03-05

Update of Marketing URL

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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 2026-07-23.*