What app is going to design to flow nicely with a iPhone Duo but not a iPhone 18? Unless Apple has a 1.4:1 ratio across their entire product line, app designers have to deal with variation.

Also, when you rotate the device, the ratio changes. This is especially common when unfolding a foldable.

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MSKJ 3 hours ago | parent | next [-]

Folded and unfolded will both be designed for 2 aspect ratios. 1 for Portrait and 1 for Landscape. Opening the fold and rotating 90 deg will give you the larger version while keeping the aspect ratio

	▲	wtallis an hour ago \| parent [-]
		"larger version while keeping the aspect ratio" is of minimal benefit. You still need to present a different layout, because eg. any toolbar is going to be a different fraction of the available area depending on whether the app is on the small outer screen or the large inner screen in portrait orientation. Nobody wants a naive 2x scaling of the phone app on their iPad.

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nonethewiser 3 hours ago | parent | prev [-]

People keep saying it’s so an app can resize to the full interior screen but none of the marketing photos actually have this. So its hard to say “what a genius masterstroke by Apple.”

Most have the closed screen plus another view. Or the lock screen which is a full photo open and a small section closed.

Im not saying its not possible but it doesn’t seem like that is their intention.

	▲	Shitty-kitty 2 hours ago \| parent [-]
		A lot of people will look at this and say. Eh I already have an Ipad and a Imac why do I need a phone with such a large screen. Their selling point is: Not having to switch from one app to another when Multitasking.