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Alternatives · KnowEm & Pentonym

Checking 500 networks is breadth. Clearance is depth.

KnowEm is built for reach — it looks up a name across hundreds of social platforms. When it comes to the legal question, it points you at a basic trademark lookup. Pentonym makes that the main event.

Short answer

KnowEm scans a name across a large number of social networks and offers profile-creation and a basic trademark lookup as add-ons. Pentonym focuses on clearance: a US trademark screen with likelihood-of-confusion analysis, plus domains, handles, web use and cultural flags — returned as one signed verdict.

The gap

A register lookup isn’t a clearance

KnowEm is good at

  • Breadth across hundreds of social networks
  • Reserving profiles at scale
  • A quick existence check on the register

It leaves unchecked

  • Likelihood of confusion within your class
  • Common-law use with no register entry
  • A three-state verdict you can defend
  • A signed, independently verifiable record

Seeing whether an exact mark exists on the register is a lookup. Deciding whether your name conflicts — same class, similar sound, senior rights — is clearance. Pentonym does the second, keeps the handle breadth you’d use KnowEm for, and signs the result.

FAQ

Common questions

Is KnowEm’s trademark check a full clearance?

It’s primarily an existence lookup on the register. A full clearance weighs likelihood of confusion in your class and considers common-law use — which is what Pentonym’s trademark axis does.

Does Pentonym check social handles too?

Yes, across the developer and social platforms that matter for a brand — as one axis of a signed five-axis verdict, not the whole product.

Real verdict · pentonym.app/v1/screen · Ed25519 · signed & independently verifiable a screening signal, not legal advice · US & EU coverage