# Quatro!

> Abstract strategy board game requiring players to align four pieces with shared properties. (iPhone/iPad app by Vincent Roest.)

- Source: https://appshunter.io/ios/app/quatro/id789246889 (this page in markdown: same URL + `.md`)
- Developer: [Vincent Roest](https://appshunter.io/developer/574898265)
- Category: Games, Sports, Board, Puzzle
- Price: $0.99
- Rating: 3.00/5 from 4 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.1 · 88 MB
- Languages: American English
- Released: 2015-08-14
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/quatro/id789246889/reviews.md

## What is Quatro!?

A new puzzle revolution for iPod touch, iPhone and iPad. Quatro! is a more modern adaptation of the wildly popular board game Quarto, invented by Swiss mathematician Blaise Müller. 

The aim of the game is to get four pieces in a row that all have at least one property in common. In this case, one reaches a Quatro. And of course, you should get a Quatro on that board before your opponent does. This may seem simple, but once you dive into the wonderful world of Quatro, you will find that timing is crucial, attention is critical and strategy is key. 

Play against an immensely smart computer (that is also adjustable to dummy-level,) against a friend on the same device or against your friends elsewhere via Game Center, and become a Quatro-master. 

Awesome math facts about the game:
- For the first move (i.e. picking the initial piece) there are 16 possibilities. In the next move this piece can be put on 16 places and one of the remaining 15 pieces can be chosen. An upper limit for the total search space is thus
16. (16.15).(15.14). … . (2.1).1 = (16!)2 = 4.4e26 (this number has a lot of zeros!). A complete check of the board would take a 500 MHz computer 280 billion years.
- The number of distinct Quatro’s in classic mode (only in rows and columns and the main diagonals) is 414298141056 winning Quatro’s, whereas the extreme mode (classic mode + winning positions in squares) holds approximately 18596841216 winning board configurations.
- If both players play optimally, the game will eventually end up in a draw, but I dare say that such a optimal state will never be reached. Just because of the mathematics.

PS: These calculations probably need some sort of check, please contact me if you should find different outcomes!

What I am currently doing to improve gameplay in future versions:
- Multiple themes (Space theme, Sushi theme and more)
- A play-reward system.
- Crazy game variations such as 5x5 boards!

I would love to hear from you, users, what might be improved or what suggestions you might have to increase the Quatro-experience!

Design by SOS Design Studio Hilversum.
Developed by Vincent Roest.

## Key features

- Modern board game adaptation
- Strategic gameplay
- Play against AI
- Local multiplayer
- Online multiplayer via Game Center
- Adjustable AI difficulty

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/quatro/id789246889/reviews.md

### 1/5 — Poorly Done

*2021-07-16*

Cant even open the app because they have done such a bad job that you can get past any game center notifications..

Maybe it was an old project that should have since been deprecated?

### 2/5 — Bugs

*2018-10-15*

Square quartos are sometimes identified even when not playing the advanced variant. Some other bugs too.

### 4/5 — Great app with a few bugs to iron out

*2018-02-03*

Love the app so far. Noticed a few specific bugs:
1. sometimes a Quatro formed by a square will be highlighted but the game won’t end
2. at one point the AI moved a piece on top of an existing piece
3. it is unclear whether Extreme mode is selected; you select a difficulty level by moving the switch over top of the level you want, but you enable extreme mode by moving the switch over top of “off”
4. it would be nice if I didn’t have to enter my name every single time

I couldn’t get the multiplayer to work at all (no apparent response from the other players). That would be a nice-to-have but it’s fine just to play against the AI as long as these small bugs are fixed.

Thanks for your effort on this app! Looks and feels great!

## Frequently asked questions about Quatro!

### What is Quatro?

Quatro is a digital adaptation of the board game Quarto, where the goal is to get four pieces in a row that share at least one common property. It's designed for iPod touch, iPhone, and iPad.

### How do you win Quatro?

You win Quatro by being the first player to arrange four pieces in a line (horizontally, vertically, or diagonally) that all share at least one characteristic, such as color, shape, height, or base.

### Can I play Quatro offline?

Yes, Quatro can be played against an adjustable computer opponent, allowing for offline play. You can also play against a friend on the same device.

### Does Quatro have online multiplayer?

Yes, Quatro supports online multiplayer through Game Center, allowing you to play against friends remotely.

### What is the price of Quatro?

Quatro is a paid app, priced at $0.99. It was last updated on August 14, 2015, with version 1.0.

### What devices does Quatro support?

Quatro is compatible with iPhone, iPad, and iPod touch devices. It has an age rating of 4+.

### How often is Quatro updated?

The app was last updated on August 14, 2015, with version 1.0. Future updates are planned to include multiple themes and new game variations.

### What is the user rating for Quatro?

Quatro has a rating of 3.0 stars based on 4 ratings. The developer is open to user suggestions for improvement.

## Version history (last 1 release)

### 1.0 — 2015-08-14

This app has been updated by Apple to display the Apple Watch app icon.

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## More apps by Vincent Roest

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All apps by Vincent Roest: https://appshunter.io/developer/574898265

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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 2026-06-10.*