Enough people have voiced their opinion on this tool but I just tried it.
The results were underwhelming. It fails to find obvious links between sites, makes completely incorrect correlations while claiming 100% matches, and has no way of figuring out if it's the same person. The "useful" features seem to be username generator based on your original input, e.g. you input "john doe" and it suggests usernames like "jdoe", "johndoe", etc.
To be clear to everyone: Electron and React Native are not alike. Electron is a big web browser. React Native work completely differently: It neither renders, computes, or runs the same. React Native uses the Hermes engine, puppeteering native components.
localStorage and cookies are the same in terms of GDPR. It encompasses all local storage mechanisms such as IndexedDB, cookies, localStorage, sessionStorage, etc.
(source: I read the directive way back when it came out, and also skimmed large sectoins of GDPR)
A story from one of my startups: A student reached out to us regarding a security vulnerability on the website, demanding money for it. He refused to say what it was or provide evidence at first, so we couldn't assess it. He said he'd disclose it to others if we didn't.
I definitely felt blackmailed. I am not a lawyer but it felt illegal. Maybe someone can chime in to say if it is?
The results were underwhelming. It fails to find obvious links between sites, makes completely incorrect correlations while claiming 100% matches, and has no way of figuring out if it's the same person. The "useful" features seem to be username generator based on your original input, e.g. you input "john doe" and it suggests usernames like "jdoe", "johndoe", etc.