Most reverse face search tools return pages. Trace runs a second round: once the first pass produces a name or a username, it asks the platforms directly — which is how it comes back with actual accounts, not just crawled pages. Every match carries a similarity score and a source link, so you judge, not us. No sign-up, no email, no password. Uploads are deleted after 30 days, the free preview needs no account, credits never expire, and the same engine is a REST API.