How to check approximate App store size of app in Xcode
To find out what's the size of the file that user will download from the App Store, you need to do the following.
- Archive your app
Export your archive for testing outside the store.
Select “Export for specific devices” and choose “All compatible device variants” from the pop-up menu.
Select "Rebuild from bitcode." EDIT: this step doesn't exist since as late as Xcode 9.4.1.
- In the output folder, you will find App Thinning Size Report.txt, which breaks down the compressed and uncompressed file sizes, plus the size of any On Demand Resources, for each device type.
For more information take a look at apple docs.
