The graph above summarizes the main result: Apple collects much less data than Google, less than a third. BigG is specifically the one that collects the most data from its users, and this probably comes from the fact that Google is present in our lives both with its software services and with the entire Android ecosystem. Apple is the company that collects the least data of all those examined. We then find Facebook with a slightly higher share, followed by Amazon and Twitter practically paired.
Among the most relevant data collected by Google, we find the activity of users on websites, thanks to its browser, that of the interaction with third-party applications and services and information relating to e-mails exchanged via Gmail. For a large number of users, Google also collects location information.
In any case, it is worth remembering that Google, like Apple, provides various tools to control the collection of personal data. For example, for Google, it is possible to monitor collection through its privacy dashboard, available both on the website and on Android devices.