As per this link: "During development, the only way to get accurate download and installation sizes for your app is to create an app size report on your Mac. However, if your app is available through the App Store or the TestFlight app, App Store Connect provides the most accurate size information"
But the app sizes generated by app size report on mac, app store (app size) and app store connect, do not match.
In the below screenshots, the app size via app store and app store connect do NOT match, for each version, we expected the app size via app store to match the app store connect uncompressed size, but that's not the case, app size via app store remained same in both versions whereas app store connect uncompressed size went from ~40 to ~80 MB. Same discrepancy was observed with the app size report generated on mac.
Can you pls help us understand why this discrepancy exists and what should be the ultimate source of truth when wanting to look at the IPA size?