Ultimate XO
Nine boards in one
Free · Designed for iPad. Not verified for macOS.
Tic-tac-toe you can actually think about.
Ultimate XO is nine small boards arranged in a big one. Win a small board and you claim its square. Win three of those in a row and you win the game.
The catch is what makes it a real game: the square you play in decides which board your opponent has to play in next. Every move is two decisions — where to go, and where you are willing to send them.
THREE GAMES
• ULTIMATE — nine boards, one game, no two matches alike
• CLASSIC — the 3×3 everyone knows, for a quick round
• MISÈRE — 3×3 where three in a row LOSES. Harder than it sounds: only one opening survives a perfect opponent, and it is not the one you will try first
AND PLENTY TO DO WITH THEM
• DAILY CHALLENGE — one position a day, the same for every player. Solve it and keep the streak
• THE LADDER — twelve opponents in order, from a first game to the deepest search in the app
• BLITZ — put a clock on it. Five minutes, three with an increment, or one
• FOUR DIFFICULTIES — from a gentle first game to an engine that does not blunder
• TWO PLAYERS — pass one phone back and forth
• ONLINE — play a stranger, or send a friend a room code
• ACHIEVEMENTS, RECORDS AND BOARD THEMES
No accounts to create and no sign-in wall. Play offline whenever you like. The game is free and supported by ads, which appear between games rather than during one.
Classic and Misère on Master are genuinely unbeatable — both are solved games and the engine plays them perfectly. The best you can do is draw, and in Misère that draw is hard to find. Ultimate on Master is a deep search rather than perfect play, so it can be beaten. That takes some doing.
Ratings & Reviews
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This update brings general improvements, refinements and bug fixes across the game. Thank you for playing Ultimate XO.
The developer, Heythem Ben Hadj Youssef, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- User Content
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Heythem Ben Hadj Youssef
- Size
- 36.3 MB
- Category
- Board
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 BHY Technologies