According to Engadget, the iPhone Duo introduces significant software changes to iOS in order to accommodate its foldable design. These are not minor tweaks but rather adjustments that touch core parts of the operating system, reflecting the hardware's unconventional shape and flexibility.
Two areas stand out in the report: the camera and multitasking. The camera software has been altered to work with the foldable mechanism, while multitasking has been redesigned to take advantage of the device's expanded or bendable screen real estate. The source does not provide exhaustive detail on every change, but it makes clear that the iPhone Duo's software experience is deliberately distinct from that of a standard iPhone.