When updating apps, does it download the entire app again?

Discussion in 'iOS 7' started by Siderz, Jan 8, 2014.

  1. Siderz macrumors 6502a

    Joined:
    Nov 10, 2012
    #1
    I've always thought it just downloaded the necessary files to update it, but I'm starting to wonder whether or not it simply installs the whole app again?

    Because the recent GTA:SA update is 1.63GB, the App Store lists it as 1.5GB. The changes aren't huge.
     

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  2. Twimfy macrumors 6502a

    Twimfy

    Joined:
    Sep 11, 2011
    Location:
    UK
    #2
    It's always a whole new version.
     
  3. Siderz thread starter macrumors 6502a

    Joined:
    Nov 10, 2012
    #3
    That seems like such a waste to me.

    Presumably it's more of a limitation with iOS? OSX can just download the update files rather than the whole thing?
     
  4. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #4
    Yep, the whole app is downloaded. There is no facility with iOS to apply a patch or process a delta - the whole program is downloaded.
     
  5. Twimfy macrumors 6502a

    Twimfy

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    Sep 11, 2011
    Location:
    UK
    #5
    From a developers point of view I actually prefer the way it is.
     
  6. Siderz thread starter macrumors 6502a

    Joined:
    Nov 10, 2012
    #6
    Why? From a consumers POV I'd rather not since it means waiting longer for updates to download and generally just a waste of my broadband data. 1.6GB is quite a bit for such a small update.
     
  7. jonasdamn macrumors 6502a

    Joined:
    Mar 4, 2013
    #7
    It could depend on application because i had real racing 3 update and it downloaded not more than 200mb.
     
  8. fardeenah macrumors regular

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    Sep 11, 2013
  9. benfica88 macrumors regular

    Joined:
    Nov 21, 2008
  10. nightstalkerz macrumors 6502

    Joined:
    May 9, 2013
    #10
    This is correct.

    Everyone who says the updates will download the entire app are wrong.

    This article explains what should be done by developers to take advantage of the delta updates: https://developer.apple.com/library/ios/qa/qa1779/_index.html
     

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