# Sudoku vs Tiny Trains

The clearest difference is in-app purchases: Sudoku at none against Tiny Trains's 1. Tiny Trains's advantage is ads (none vs shown) and update cadence (every 3 days vs every 10 days). On price and iOS requirement there is nothing between them.

Both are free to download. Tiny Trains sells 1 one-off in-app purchase. Sudoku asks for nothing beyond the download.

Sudoku ships an update every 10 days, Tiny Trains every 3 days. The most recent releases landed on October 16, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sudoku | Tiny Trains |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (25 ratings)](https://appshunter.io/ios/app/tiny-trains-trainyard-puzzle/id6759735335/reviews)** |
| Number of ratings | — | **25** |
| Positive reviews | — | 82.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 34 MB |
| Requires iOS | 18.6 | 18.6 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Torben Filt Slothuus](https://appshunter.io/developer/1868227928) | [Murat Yilmaz](https://appshunter.io/developer/650552107) |

## What reviewers say

### Sudoku

[App page](https://appshunter.io/ios/app/sudoku-sweeper/id6758919395)

**Features:** macOS Compatibility

**In-app purchases:** none


### Tiny Trains

[App page](https://appshunter.io/ios/app/tiny-trains-trainyard-puzzle/id6759735335)

A relaxing logic puzzle game where you build rail networks to guide trains to their destinations. Solve increasingly complex levels by splitting, merging, and routing trains, with a Pro upgrade unlocking 100 handcrafted levels.

**Highlights:** Build rail networks, Guide trains to stations, Split and merge train colors, Solve logic puzzles, Handcrafted levels, Route planning mechanics

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Puzzle Pack | $5.99 | one-time |


## Frequently asked questions

### Is Sudoku free?

Sudoku is free to download, with no in-app purchases.

### Is Tiny Trains free?

Tiny Trains is free to download, with in-app purchases available.

### Do Sudoku or Tiny Trains have ads?

Sudoku shows ads; Tiny Trains does not.

### Which is updated more often, Sudoku or Tiny Trains?

Sudoku ships an update every 10 days, and Tiny Trains every 3 days. Most recently, Sudoku was updated on October 16, 2026 and Tiny Trains on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*