Updating iOS app almost doubles size in iTunes

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Hiya there,

When I previously updated one of my apps on the App Store (created using Unity iPhone 1.7, though I'm now on Unity 3), the size of the app almost doubled on the App Store.

Is this normal behaviour? If I were to make a new app in Unity 3 and release it on the app store, and then release an update, would I still get this problem?

If anyone could shed some light on this then it would be greatly appreciated! I know this may not strictly be a Unity question as such, but I tend to get better answers from people here ;)

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Answer by Peter G · Sep 25, 2011 at 04:46 PM

(Assuming you haven't made any major changes in your update) Since you say that you haven't built a new version since 1.7, my guess is that it is just from all the little changes from 1.7 to 3.x. I don't think that there is one specific feature that bloated your app size, but there are probably lots of little things causing it to increase.

Two things that might have increased your build size some:

In the build settings, make sure you use the Mono subset. It strips some libraries and will benefits overall build size.
Target architecture might greatly bloat your player size. Unity 3.x let's you Build to ARMV 6 or 7 and that can cause your build size to increase by a lot.

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joeltebbett · Sep 25, 2011 at 04:56 PM 0

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Thanks for the reply Peter.

The app I was referring to is one that I released a while back and I've never opened it with Unity 3. Really what I would like to know is that if I made an app from scratch in Unity 3, released it on the App Store and then updated the app, will the size of the app increase massively in iTunes?

I'll modify the original question so that it makes more sense.

Peter G · Sep 25, 2011 at 05:18 PM 0

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In that case, you're build size would not increase by much between updates, but it should be about the same size as your current build.

joeltebbett · Sep 26, 2011 at 09:38 AM 0

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Thanks for the clarification!

Updating iOS app almost doubles size in iTunes

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