I am reading the definition of "personal data" here https://gdpr-info.eu/issues/personal-data/. My understanding is that GDPR comes into play when information is about personal data.
Let's say there is an app similar to clicky.com. It saves three things about visitors:
OS information. The app does not have emails, real names, addresses or other info about the visitors.
If the app is anonymizing IP addresses before saving data, it means that browser and OS info can no longer be assigned to a real person.
In other words, there is no way we can say that this information belong to that particular real "person".
Does it mean that the app is GDPR compliant for this particular purpose?