Tic Tac Toe - 2 Player XO
Puzzle · CDT Puzzle Studio
Tic Tac Toe - 2 Player XO screenshots
Tic Tac Toe - 2 Player XO does one thing that most versions of this game skip: it lets two people play against each other on the same phone. That is the feature I keep coming back to when I think about who this app is for. It is a free download from CDT Puzzle Studio, and it is built for anyone who wants a quick round of XO without a pen, paper or a second device.
The game has been on Google Play since May 2023 and has passed 100 million installs, with a 4.2 average across more than 71,000 ratings. Those numbers suggest a lot of people have tried it, though the app itself is simple enough that the install count says more about the game's universal appeal than about anything the developer added. It carries an Everyone rating, which fits a family-friendly game.
If you already know how tic tac toe works, you know what to expect here. The pitch is not a reinvention of the grid; it is a polished, animated version of it with a computer opponent you can tune and a local two-player mode. I would expect that combination to appeal to parents keeping kids occupied, friends sharing a phone on a trip, or anyone who wants a five-minute distraction without learning a new ruleset.
What makes this version stand out
The most distinctive feature is the AI, which comes with three difficulty levels: Easy, Medium and Hard. That range matters because a single fixed opponent is either too easy for adults or too punishing for children. Switching between them keeps a simple game useful.
The visual treatment is the other selling point. Glow effects and animations are part of the presentation, and the recent update smoothed out the glow animations and X/O effects. This is cosmetic, but it separates a bare grid from something that feels finished.
The app is pitched as an all-in-one board games collection, and the latest update adds new mini games. For now, the core experience is still the XO grid, with the collection element as an extra.
Playing against the computer
The single-player mode is where most people will spend their time. You pick a difficulty level and play against the AI, which has been improved in the most recent version, with a harder Hard mode and a smarter Easy mode. That is a sensible adjustment for both experienced players and beginners.
The AI opponent should keep matches interesting for a long time. I would treat that as marketing rather than a promise, since tic tac toe is a solved game. The three difficulty levels offer a way to reset that familiarity.
The recent update also fixes a freeze bug on older Android devices, which suggests the developer is still paying attention to how the game runs on less powerful hardware.
Two players, one screen
The two-player mode gives the app its name, and it is the feature I would highlight to anyone deciding whether to install it. Two people share a single phone, taking turns on the same screen. It replaces the notebook-and-pen version passed around classrooms and waiting rooms for decades.
Pass-and-play works well for a game with turns as short as this one. There is no second device needed. If you are sitting with someone and want a quick match, this is about as frictionless as mobile gaming gets. The trade-off is that it is inherently a local, in-person mode.
For families, that is often exactly what is wanted. A parent and child can play a few rounds on one phone, and the Everyone rating means there is nothing to worry about.
Ads, updates and what to expect
The app is free and supported by ads, with no in-app purchases. Ads between games have become less frequent, though how intrusive they are is hard to judge without playing.
The update history is also worth a look. What the notes show is an app that is still being worked on, which is a reasonable signal for a game this simple.
Because the game is free and lightweight in concept, that is worth keeping in mind. For a game you might open for two minutes at a time, that is a fair arrangement.
Who this suits
This app is for people who want tic tac toe and nothing more complicated. For a quick match against a tunable computer opponent, or a way to play with someone beside you without pen and paper, the feature set lines up well. The glow effects and animations add a modern feel.
It is also a reasonable choice for a small game to keep on a phone for odd moments. The two-player mode makes it more social than most single-player puzzle games, and the three difficulty levels give it staying power.
It is not a deep strategy game or a large collection. The mini games are an addition to the main XO experience, not a replacement. If you want dozens of fully developed titles, this is a single classic with extras on the side.
A dependable pick for quick XO matches
The three AI difficulty levels give it more range than a single-opponent app, the two-player mode makes it usable with friends and family on one device, and the glow effects add a bit of polish without getting in the way. It is free, it carries an Everyone rating, and the recent update suggests the developer is still improving it.
The ads are the main trade-off. Those are reasonable constraints for a free game of this size. I would recommend it to parents, casual players and anyone who wants a dependable tic tac toe app.
If the answer is yes, this app covers that ground cleanly. If you are after something with more depth or a larger collection of games, the core experience here is still one classic grid.
The short verdict
A free, well-maintained tic tac toe app with three AI levels and a pass-and-play mode for two people on one phone.
What's new in version 1.1.151
🎮 v1.0.1511 Update — What's New: ✨ NEW: new mini games added to the collection ⚡ Smoother glow animations & faster X/O effects 🤖 Improved AI logic — harder Hard mode, smarter Easy mode 🐛 Fixed freeze bug on older Android devices 📱 Reduced app startup time by 40% 🔇 Less frequent ads between games Love the game? Drop us a ⭐⭐⭐⭐⭐ — it keeps us updating!
App specs
- Version1.1.151
- UpdatedOctober 7, 2026
- Downloads100M+
- RequiresAndroid 7.1+
- PriceFree
- Age ratingEveryone
Tic Tac Toe - 2 Player XO: frequently asked questions
Can two people play against each other on the same phone?
Yes. The game has a dedicated two-player mode designed for sharing one device, so you and a friend or family member can take turns on the same screen. It is a paper-free alternative to the notebook version of the game.
How difficult is the computer opponent?
The AI comes with three settings: Easy, Medium and Hard. The AI comes with three difficulty levels, and the most recent update made Hard mode harder while making Easy mode smarter. That gives you room to adjust the challenge depending on who is playing.
Does the game cost anything?
The app is free to download and does not offer in-app purchases. It is supported by ads, and ads between games have become less frequent.
What was added in the latest update?
The October 2026 update adds new mini games to the collection, smooths the glow animations and X/O effects, and improves the AI logic at both ends of the difficulty range. It also fixes a freeze bug on older Android devices and claims a 40% reduction in startup time. Ads between games are now less frequent as well.
Is this game suitable for children?
The app carries an Everyone content rating, and the game itself is the classic XO grid with no mature content. The two-player mode is meant to be shared with friends and family. That combination makes it a reasonable choice for younger players, especially on the Easy difficulty setting.
Pros
- Three AI difficulty levels, from Easy to Hard
- Two-player mode on a single phone
- Free with no in-app purchases
- Glow effects and animated X/O marks
- Still updated years after release
Cons
- Supported by ads between games
- Two-player mode is local only
- Core game is a single classic grid
Download Tic Tac Toe - 2 Player XO
by CDT Puzzle Studio
Free · Contains ads · Official store listings