Post Club is a $4.99 typewriter app for the iPhone Duo that asks you to fold the phone halfway before you start typing. You open the iPhone Duo to browse your letters and pick a machine, fold it halfway to…
Duo Aquarium is a $1.00 fish tank app that switches to a Desk view when you fold the iPhone Duo part-way into a tabletop position. The tank and a clock sit above the hinge, while the feeding, lighting and aquarium…
The free game Who’s at the Door? turns the iPhone Duo into a door that you unfold to peek and fold shut when a villain lunges. Your reflexes are timed to the millisecond, and only a real flinch against a…
Fold Match is a $2.99 shape puzzle for the iPhone Duo where you line up a shape on one half of the screen and fold the phone to see how close you got. Version 1.1 made the game playable on…
Greens Mini-golf is a free putt-putt game for the iPhone Duo where folding the phone like a laptop puts the course on the lower half and turns the upper half into a caddie camera. The game requires iOS 18.0 or…
Marbles Unhinged is a free marble maze game for the iPhone Duo where folding the phone turns the maze floor into a ramp. Other iPhones and iPads can play the game too, so a foldable is optional. Developer Cromulent Labs…
Valley Run is a $0.99 marble racing game for the iPhone Duo where folding the phone swings a chrome marble through neon courses, like pumping a playground swing. Owners of other iPhones can play the game too by tilting the…
PokeSui is a free drawing app for the iPhone Duo where you sketch a fish on the bottom screen and watch it swim in an aquarium on the top screen. It also works on a regular iPhone or iPad, but…
The MUNELA camera app for iPhone released on November 6. The black and white camera adds a glow around the brightest light in photos and video, and it costs $6.99 as a one-time purchase. Apple limited the new texture and…
Chirpfold is a free game for the iPhone Duo where folding the phone makes a round little bird flap its wings. A light fold from where you are counts as a flap, so you can play with the phone half…