I heavily use both platforms, whatever I talk about or wherever I go, I see targeted ads. When I speak about brand X, I immediately see ads for it both in ios and android. Plus every device mic is being listened to all the time, advertising agencies are your proof. Sure android devices collect more data in practice, however the data that’s not being collected by ios can be inferred from the data that’s already been collected. Do you really believe a company when they say their devices are made to ensure your privacy? Google literally says the same thing on their privacy policies ;) it’s all legal mumbo jumbo that doesn’t mean what it’s supposed to.