When the iPhone Duo launched, we shared a list of some of the fun apps developers created for the new form factor. Two weeks out, developers are continuing to come up with fresh ideas, so we thought we’d share some of our favorites. Games

Marbles Unhinged ($2. 99) – Marbles Unhinged is a marble maze designed for the Duo. When you fold it, the floor turns into a ramp. If you stand the top half up, you can bank a marble off of it. When you snap the hinge, the marble launches up. Midnight Fridge ($2. 99) – Midnight Fridge turns the ‌iPhone Duo‌ into a tiny refrigerator. It’s a memory game where the idea is to look at the magnets on the fridge and then find the items inside. Greens: Mini Golf ($2. 99) – Greens is a mini-golf app made for the ‌iPhone Duo‌, and it’s playable in any orientation. When folded like a laptop, you can putt on the half on the table, with the upright half serving as a caddie camera. Chirpfold (Free) – Chirpfold is a Flappy Bird-style app where you fold the phone to cause your bird to flap its wings. Valley Run ($0. 99) – Valley Run is a neon-themed racing game where you fold the ‌iPhone Duo‌ to direct a marble down a series of challenging tracks. PianoFold ($4. 99) – PianoFold is a rhythm game you can play with the ‌iPhone Duo‌ positioned like a laptop. Press and hold on the keys to match the song that’s playing. It’s free to download, but the full unlock is $4. 99. Load Bearing ($5. 00) – Load Bearing is a roguelite Tetris-style game that’s meant to be played with the Duo half open. The controls are on the bottom, and the blocks fall at the top. It also has deck building elements, so you can put together a set of your preferred block pieces to beat each level. Who’s at the Door? (Free) – Who’s at the Door? is an app that turns your ‌iPhone Duo‌ into a door. Open it up to see who is on the other side, and if it’s something scary, make sure to slam the Duo shut quickly before it gets you. Fold Match ($2. 99) – Fold Match is a game where you’re given a shape on one side of the Duo and a blank spot where the shape needs to go on the other side. The idea is to position the shape to get to that empty space, but you won’t know how close you were until you close the iPhone. Battlefleet Duo (Free) – Battlefleet Duo takes advantage of the Duo’s design for a Battleship-style game. In laptop mode, you can see your fleet on the lower screen and the enemy’s waters in front of you. Simple But Clever

Duo Aquarium ($1. 00) – As the name suggests, this app turns your ‌iPhone Duo‌ into an aquarium. When in tent mode, it serves as a virtual fish tank and clock. You can choose your fish and your add-ins, then feed them. AltoPaint ($5. 99) – AltoPaint is an app that turns the ‌iPhone Duo‌ into a tiny canvas with a paint palette. There are watercolor, oil, and gouache paints with mixable colors. Post Club ($4. 99) – Post Club is a cute app where you can pick a typewriter, fold the Duo like a laptop and type up a letter. There are 10 typewriters and 14 paper styles to choose from. Halfpage ($2. 99) – Halfpage is another app that turns the ‌iPhone Duo‌ into a typewriter when it’s used in a MacBook-like orientation. The keys are at the bottom, and what you type is at the top. It has a simpler design than Post Club. Callsign ($1. 49+) – Callsign turns your ‌iPhone Duo‌ into a sign that lets people know if you’re free or busy on a call. Just set it up, put it in tent mode, and people can know at a glance not to bother you. It’s free to download, and there are different visual packs to unlock with one-off $1. 49 purchases. AskZine ($1. 99) – AskZine is a Magic 8 Ball-like app where you ask a question, unfold the screen, and see your answer…