Privacy & safety · App trust, updates and security
When Storage Studio says an app used my space, could it be guessing?
Short answer: It tells you how sure it is: it names an app only when it can identify one, hedges when it's unsure, and says plainly when it can't tell — it never invents a cause. Its own jobs are named as its own.
It tells you how sure it is. A notice names the app when it can identify one, hedges when a folder only looks like it belongs to an app, and says plainly when it couldn't tell — it never invents a name to fill the gap.
If free space moved because one of Storage Studio's own jobs was running, the notice says so. You can mark a source as expected so it isn't mentioned again. All of this is worked out on your Mac.