In the case of Google and McDonalds I don't think there was collaboration. The developers of the McDonalds app included root detection code and have their app r

In the case of Google and McDonalds I don't think there was collaboration. The developers of the McDonalds app included root detection code and have their app refuse to load all on their own as part of some ill-considered security scheme. If apps on iOS are able to detect whether 3rd party stores/apps are enabled we may see the same thing play out. I wonder then if just providing the ability to detect other apps like that would be a violation of the DMA, as it gives others apps on the system the ability to degrade their functionality.