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PrettyWings

macrumors 6502a
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Nov 3, 2016
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In the second betas of iOS and iPadOS 15, released to developers yesterday, Apple is introducing a new entitlement that developers may request that will expose their apps to more memory. Apple says that this entitlement will inform the system that an app "may perform better by exceeding the default app memory limit." Apple's developer documentation doesn't specify how much extra RAM an app may be exposed to and also says this is limited to "supported devices."

Add this entitlement to your app to inform the system that some of your app's core features may perform better by exceeding the default app memory limit on supported devices. If you use this entitlement, make sure your app still behaves correctly if additional memory isn't available.
While Apple doesn't specify the amount of extra RAM an app may request, the wording of the documentation, which advises developers to use a function to "determine the amount of memory available," suggests the ceiling of memory apps may request may be relatively high.

It's unlikely that Apple will allow developers to utilize the full amount of memory on a device. While that scenario may be useful for high-end professional apps on the iPad Pro, it would significantly slow down the system and make it harder to multitask with different apps. Users of the iPad Pro, and more so recently thanks to the M1 iPad Pro, have complained that iPadOS is limiting the true potential performance of the iPad.
 
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snipr125

macrumors 68000
Oct 17, 2015
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To be honest, the limitation of 5GB per app has been somewhat blown out of proportion considering the previous Ipad Pro 2020 had max 6GB of RAM anyway. But IOS15 freeing up more RAM per app as needed is obviously a good thing, now that the M1 Ipads have upto 16GB RAM.
 

ericwn

macrumors G4
Apr 24, 2016
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As if “pro” were a word with meaning. (Other than indicating slightly better specs)
 
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