Privacy in recent years is something that everybody is talking about. Some companies undersell their own devices just to gain the information that they will harvest. The others say it aloud that they put privacy on the pedestal, and that includes their devices. This is Apple.
Even if you decided to move away from devices and companies that violate your rights and decided to buy an iPhone, remember, that in the whole of this the weakest link, the hole in a privacy matter is you!
You may say what you want about Google Analytics, especially about how “they” are, apart from displaying data for you, using data gathered for “their” business purpose (forget about privacy). If you are a website owner and you are looking for a reasonable tracking method for your visitors, this is the solution that you will pick in the first place.
The problem with Google Analytics is that their tracking script weights a lot and that is slowing down your website.