Every app collects analytics and crash data. Even if they are not coded by developers to collect data, still data are collected by Google including country, device type, versions and much more to improve services so that developers can see the errors and fix it. Many of the developers use Facebook Audience Network for earning by displaying ads on their app, it means still Facebook knows the user. Also developers use ads meditation and Facebook ads and Google Admob Ads are connected and share data for higher income rate.
