Irishappletech

macrumors regular
Original poster
Aug 31, 2017
231
16
hi so I notice on iPad and iPhone if I go to settings general iPhone/iPad storage I see a list of apps on each device but each app on each device is giving a different storage total. Any idea why.

Please see the screenshots below
 

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C DM

macrumors Sandy Bridge
Oct 17, 2011
51,388
19,449
Data that is stored for the app can differ since the total isn't just for the app that's installed but also the data related to it that changes as you use the app.
 
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Irishappletech

macrumors regular
Original poster
Aug 31, 2017
231
16
ah right I see so its not purely the install amount its a variety of things giving that total
 
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TimFL1

macrumors 65816
Jul 6, 2017
1,218
1,301
Germany
App install sizes can afaik also vary from device to device (e.g. smaller screen devices having lower res assets).
 
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winmaciek

macrumors member
Nov 20, 2014
72
59
Poland/Ireland
Yes, it’s called app slicing (I think) and it was introduced couple years ago. Basically, it allows developers to choose which assets are used on which device. Previously you had a “fat” copy of the apps which contained everything, but their size became noticeable with all those iPhone, iPad and iPod touch models. So know, if the app is written properly, you only get graphics designed and optimized for particular device. On iPad it’s gonna take up more space, because of sheer number of pixels needed.
 
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