A multi-function controller mount is configured or adapted for use with a game controller and an electronic device. The mount includes a controller receiver for removably attaching to the game controller. The mount also includes an arm having a first end pivotably attached to the controller receiver at a first pivot axis. The mount also includes a device tray that is pivotably attached to a second end of the arm at a second pivot axis. The device tray is configured for holding the smartphone at an adjustable height and viewing angle. The height and the viewing angle are adjustable through movement or the arm at the first pivot axis and movement of the device tray at the second pivot axis. The mount also includes a lock feature attached to the arm for selectively preventing movement of the arm relative to the controller receiver.