Analyze iOS version distribution of a specific app in AppStore Connect

Question

Is it possible to analyze the distribution of iOS 13 of one of my app using AppStore Connect?

Background:

I have an app in the AppStore which currently uses iOS 11.0 as deployment target. Now I would like to use an Apple API which requires a minimum deployment target of iOS 13.0.

I don't want to exclude many user, If I would set the deployment target in the next version to iOS 13.0.

I have no 3rd party analytic tools integrated in my app.

Additional question:

If I would change deployment target to iOS 13, can users with lower iOS still download the last compatible version of my app which uses lower deployment target?

Answer 1

Yes, you can partially do this.

Go over to App Store Connect > App Analytics and then check both impressions and app units. In the dropdown filter menu at the top choose platform version.

Here you can see downloads/sales plotted by the different OS versions. Same goes for impressions or product page views. Based on those numbers you should be able to make your decision.

Once you set a specific deployment target, previous customers can still download the last compatible version. In App Store Connect, you can manage this under "My apps" > Click on the app > "Pricing and Distribution" > Scroll down to "Last-Compatible Version Settings"