I'm considering including some large movies in my app, but I don't want users to have to re-download the movies each time they get an update. When a user downloads an update from the app store, do they end up re-downloading the entire bundle? Or only parts of the app that have changed relative to their version (i.e. do updates only ship some sort of binary patch)?
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51answers:
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A:
The whole app. iTunes actually stores multiple versions of all your apps, and they are submitted to Apple as zipped app bundles.
samkass
2010-09-23 02:23:14
Newer versions of iTunes drop old versions of apps that have been updated into the Trash.
hotpaw2
2010-09-23 02:33:50
A:
The whole bundle, as submitted to, tested, approved and codesigned by Apple.
iTunes will delete any previous versions of your app.
If you have very large content that you don't want installed on every update, you might want to consider allowing users to download it from a website for offline use, and have the app store it in the app's sandboxed Documents directory, which should survive app updates (baring weird update bugs).
hotpaw2
2010-09-23 02:32:47
A:
tc.
2010-09-23 02:46:33