The protection of users’ personal data has recently been increasingly on the agenda of many tech giant companies. But in order to maintain their work and make a profit, companies have to track some information about users.

A new study from StockApps, which talks about the tracking of user data by Google, Apple, Facebook, Twitter, and Amazon, found that among them, Google collects the most data. But Apple keeps track of the least amount of information about its customers.

Unfortunately, it is not specified which data points are mentioned in the study. Although it is noted that this applies to location, browser history, activity on third-party sites, and, in the case of Google, mail.

StockApps research found that Google tracks 39 types of personal user information, while Apple only tracks 12

In fact, such results are quite understandable, because among these companies, Apple is the least dependent on advertising. Cupertino company is only interested in 12 separate types of user information. Although it is very surprising, Facebook was not far behind, receiving 14 unspecified data points.

The following companies still come in further — 23rd and 24th for Amazon and Twitter, respectively. And Google looks significantly more into the privacy of users with 39 types of tracked personal data.

“Most people do not have the time or patience to read privacy policies that can be several pages long for each website they visit. Also, it is quite unlikely that all users have a background in law to properly grasp the privacy policy. Besides, users lack time, patience, or energy to try to figure out what information websites are storing and how they are using it to their advantage. As a result, users end up allowing Google to harvest all the data they need by agreeing to the privacy policy terms,” comments StockApps analyst Edith Reads.