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How do I see if the size of my iOS 14 app clip is below 10MB?

I have been building an app clip using the Xcode 12 beta. According to the documentation the application should be less than 10MB, but I have no way of seeing if I am actually below this limit.

Solution

  • I disagree with the current previous accepted answer. It is certainly wrong since it includes the code for all architectures, maybe the bitcode and does not have the final compression from the app store. You should refer to Apple's guide on how to estimate the app size. Look here for "Create the App Size Report".

    tl;dr Find the clip size like this:

    1. Archive your app in Xcode.
    2. Export your archived app as an Ad Hoc, Development, or Enterprise build.
    3. In the sheet for setting the development distribution options, choose “All compatible device variants” for app thinning, and enable Rebuild from Bitcode.
    4. Sign your app and export it to your Mac.

    In the exported folder you will find a file called App Thinning Size Report.txt

    It now has 2 entries. One for your main app and one for your app clip. Look for a line like:

    App size: 6.7 MB compressed, 18.6 MB uncompressed

    I assume the 10MB limit refers to the compressed size of the app since network traffic should be the limiting factor. Seems like my assumption was wrong, the 10MB limit refers to the uncompressed size according to an Apple Developer Technical Support Engineer. Refer to kanekins comment below for more details.