# XO Challenge — A Tic Tac Toe Game

> A Tic Tac Toe Game (iPhone/iPad app by Adolfo Vera Blasco.)

- Source: https://appshunter.io/ios/app/xo-challenge/id1450259896 (this page in markdown: same URL + `.md`)
- Developer: [Adolfo Vera Blasco](https://appshunter.io/developer/898601649)
- Category: Games, Board, Strategy
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 12.0 · 9 MB
- Languages: American English, European Spanish
- Released: 2019-03-22
- Data updated: 2026-03-05
- User reviews in markdown: https://appshunter.io/ios/app/xo-challenge/id1450259896/reviews.md

## What is XO Challenge?

Now you can play Tic Tac Toe on your iPhone or iPod Touch for free.

In XO Challenge you will play against a Machine Learning model living in your iPhone. This ensures that your iPhone won't keep making the same moves over and over again.

XO Challenge offers a new game mode in a In-App purchase

* Times Up! game mode. You only have 1, 3 or 5 seconds to think your next move

Behind The Scenes

XO Challenge was born during the time I was writing a serie of articles about Core ML and Create ML, part of Apple technologies related to Machine Learning (aka ML).

Would be possible that a ML model "learn" to play an simple strategy game and even defeat a human player?

Well, the answer is a download far from you.

Enjoy!

The articles serie...
http://desappstre.com/category/machine-learning/create-ml/

Thanks to UCI to mantain one of the best ML models repository. The model used in this app could be found at...
https://archive.ics.uci.edu/ml/datasets/Tic-Tac-Toe+Endgame

Dua, D. and Graff, C. (2019). UCI Machine Learning Repository [http://archive.ics.uci.edu/ml]. Irvine, CA: University of California, School of Information and Computer Science.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Times Up! | $2.99 | one-time |
| Colors | $0.99 | one-time |
| The Bundle | $2.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2019-03-22

No release notes.

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| --- | --- | --- | --- |
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| [Tic tac toe - 2 player xo game](https://appshunter.io/ios/app/tic-tac-toe/id6467504034) | — | Free | Games |
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| [tic tac toe SPEED TAPPING](https://appshunter.io/ios/app/tic-tac-toe-speed-tapping/id1642519365) | — | Free | Games |
| [Cat vs. Dog XO](https://appshunter.io/ios/app/cat-vs-dog-xo/id1315784350) | — | Free | Games |

## More apps by Adolfo Vera Blasco

- [Dice - Your app for RPGs, wargames and board games](https://appshunter.io/ios/app/dice/id898601646)
- [TapTo Count - Tally Counter](https://appshunter.io/ios/app/tapto-count/id907171874)
- [Shelves - For Constant Readers](https://appshunter.io/ios/app/shelves/id985954273)
- [movemad - Madrid EMT & bicimad](https://appshunter.io/ios/app/movemad/id994861616)
- [Palettte](https://appshunter.io/ios/app/palettte/id1442338794)

All apps by Adolfo Vera Blasco: https://appshunter.io/developer/898601649

## Related topics

[adolfo vera blasco](https://appshunter.io/ios/topics/adolfo-vera-blasco)

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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 2026-03-05.*