Twelve Two Labs

Two-player board games

SplitBoard

Two-player board games for iPhone Duo. Open the phone flat on the table between you, and each half of the screen turns to face its player.

  • Open the phone flat between two people: the screen splits along the fold and each half turns to face its player
  • Tic-tac-toe and Four in a Row, each with a short How to play and a practice game
  • No one to play? Take on the computer at Easy, Medium or Hard
  • Both players see every move, whose turn it is and the running series score on their own side
  • Stand it up like a laptop and the score sits on the raised half while you play on the half on the table
  • Close it mid-match and the game waits; open it again and you pick up where you left off
  • On other iPhones, sit across from each other and share one board, with the far player's strip turned to face them
  • Pieces differ by shape as well as color, with VoiceOver labels throughout. No ads, no accounts, no tracking

Coming soon. SplitBoard is not released yet. This page is published early so its support and privacy information is available. Choose Notify me to get one email when it launches, and nothing else.

Screens

Select a screen to see it larger.

  • On iPhone Duo, each player gets their own half of the screen.
    iPhone Duo's inner display split into two side-by-side panes, each with its own copy of a Four in a Row game. The left pane, outlined in orange, reads Player 2, Your move; the dimmed right pane reads Player 1, Waiting for Player 2. Blue discs carry a dot and orange discs a bar.
    On iPhone Duo, each player gets their own half of the screen.
  • Each side sees the result and the series score from its own point of view.
    Tic-tac-toe on iPhone Duo's two panes after the last move. The left pane, Player 2's, shows Player 1 wins and Series 0-1; the right pane, Player 1's, shows You win! and Series 1-0. Both offer Change game and Rematch over a board of blue Xs and orange Os.
    Each side sees the result and the series score from its own point of view.
  • Four in a Row: line up four across, down or diagonally.
    A Four in a Row win on one iPhone: four blue discs along the bottom row are ringed in gold, and a card reads You win!, Series 1-0, with Change game and Rematch buttons. Player 2's strip at the top is turned upside down to face across the table.
    Four in a Row: line up four across, down or diagonally.
  • Play a friend across the table, or the computer.
    Four in a Row against the computer on one iPhone. The top strip reads Computer, Waiting for you; the bottom strip reads You, Your move, with the score 0-0 and Undo and menu buttons. Blue discs carry a dot and orange discs a bar.
    Play a friend across the table, or the computer.
  • Easy is free; Medium and Hard come with SplitBoard Complete.
    Four in a Row setup. Play against offers A friend or The computer, with The computer chosen and the note You play blue and go first. Computer level lists Easy, Medium and Hard, with Medium and Hard locked, then a Start button and a How to play link.
    Easy is free; Medium and Hard come with SplitBoard Complete.

SplitBoard is for two people and one phone on the table between them. Most two-player phone games make one of you read the board upside down; SplitBoard turns the board around instead.

Built for the open phone

Open iPhone Duo flat between you. SplitBoard splits the inner display along the fold, and each half turns to face its player, with the seam kept on the fold so nothing important lands on the crease. Both of you see every move, whose turn it is, and the series score. Stand it up like a laptop and the scoreboard moves to the raised half while you play on the half on the table. Close the phone and the match waits for you to open it again.

The games

The first release has Tic-tac-toe and Four in a Row, with undo and a series score. Each game has a short How to play guide and a practice game against the computer. Dots and Boxes and Checkers are planned for a later update.

Play the computer

No one across the table? Play the computer at Easy, Medium or Hard. Easy is free and unlimited, so the practice games always are too.

For everyone at the table

Pieces differ by shape as well as color, so nobody has to tell blue from orange to play, and every square and column carries a VoiceOver label. Reduce Motion is honored. On iPhones that do not fold, you sit across from each other and share one board, with the far player’s strip turned to face them.

No ads, no tracking

SplitBoard has no ads, no accounts and no tracking, and makes no network connections, so it works offline. Playing against a friend is free without limits, and so is the Easy computer. SplitBoard Complete, a one-time $4.99 purchase with Family Sharing, adds the Medium and Hard computer and the games added later. There is no subscription. SplitBoard 1.0 is coming to the App Store for iPhone Duo and runs on other iPhones on iOS 27.1 or later.

Questions about SplitBoard

How do two people play on one phone?

Open iPhone Duo flat on a table between you. SplitBoard splits the inner display along the fold and turns each half to face its player, so you both see the board the right way up and play across the table.

What happens if we close the phone mid-game?

The match waits. The outer display says to open the phone to keep playing, and opening it puts you back where you were. You can also choose to continue on the outer display.

Does it work on an iPhone that does not fold?

Yes. On other iPhones you sit across from each other and share one board, with the far player's strip turned to face them.

Which games are included?

The first release has Tic-tac-toe and Four in a Row, each with a How to play guide and a practice game against the computer. Dots and Boxes and Checkers are planned for a later update.

Can I play on my own?

Yes. Choose The computer on a game's setup screen and pick a level. Easy is free and unlimited. Medium and Hard come with SplitBoard Complete.

What does SplitBoard Complete add?

The Medium and Hard computer in every game, and the games we add later. Playing against a friend is always free, without limits, and so is the Easy computer. It is a single $4.99 purchase with no subscription, and Family Sharing is on.