# Choodoku: Train Logic Puzzle — One line. Every passenger.

> One line. Every passenger. (iPhone/iPad app by Andrej Mazic.)

- Source: https://appshunter.io/ios/app/choodoku-train-logic-puzzle/id6817049184 (this page in markdown: same URL + `.md`)
- Developer: [Andrej Mazic](https://appshunter.io/developer/6788370656)
- Category: Games, Casual, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 20 MB
- Languages: American English, French (France), German (Germany), Japanese, Brazilian Portuguese, European Spanish
- Released: 2026-10-11
- Data updated: 2026-11-02

## What is Choodoku?

Choodoku is a cozy logic puzzle about a little train with a big job.

Lay one continuous track through every tile of the grid, stop at each numbered station in order and pick up every passenger along the way. When everyone's aboard, watch your train chug off on its victory ride!

Easy to learn, hard to put down. Every puzzle has exactly one solution, so it's always pure logic, never luck.

HOW TO PLAY
- Start at station 1 and drag to lay track
- Visit the stations in order: 1, 2, 3…
- Fill every single tile. No gaps, no crossings
- Made a wrong turn? Just drag back or tap Undo

FEATURES
- Hand-crafted routes that grow from gentle warm-ups to real brain teasers
- Daily Ride: a fresh puzzle every day. Keep your streak going!
- Endless mode for when you just can't stop
- Dozens of cute animal passengers riding in your wagons
- Beautiful day and night themes
- Hints when you're stuck. Start with 6 free hints and earn more anytime
- Achievements, leaderboards and daily challenges with Game Center
- Your progress syncs across your iPhone and iPad with iCloud
- Play offline, anywhere
- Relaxing music and sounds, with no timers pushing you

PERFECT FOR
Fans of path puzzles, one-line drawing games, number mazes, connect-the-dots and sudoku-style logic, or anyone who wants a calm, clever break in their day.

Choodoku is free to play. It includes optional ads, and a one-time "Remove Ads" purchase turns off ads between levels.

Hop on and see where the tracks take you. Choo choo!

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


## Is Choodoku safe?

Not enough ratings yet to assess Choodoku.

## Is Choodoku legit?

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


## Version history (last 4 releases)

### 1.2.1 — 2026-10-29

Bug fixes and improvements.

### 1.2.0 — 2026-10-23

New in 1.2.0:
- Finish the Daily Ride and get 3 free hints, every day!
- Turn on reminders to hear when a new ride and your hints are waiting, and before your streak runs out. You can change them any time in Settings → Reminders.
- Every ride now brings new passengers. Who will you meet today?

### 1.1.0 — 2026-10-19

New in 1.1.0:
- Choodoku now speaks Spanish, Portuguese, German, French and Japanese. Pick your language in Settings.
- Share your Daily Ride as a picture.
- Usage statistics and crash reports help us improve the game (in Europe only with your consent).
- Small fixes and improvements.

### 1.0 — 2026-10-11

No release notes.

## More apps by Andrej Mazic

- [Pulse: Reflex Defense](https://appshunter.io/ios/app/pulse-reflex-defense/id6788370654)

All apps by Andrej Mazic: https://appshunter.io/developer/6788370656

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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 2026-11-02.*