Which is your main competitors? it can be something like Civic but decentralize? or it have some similarity to Remme or Selfkey?
In Essentia Identities don't require any centralized app, email or phone number. The examples mentioned do.
In Essentia you just sign and verify messages to handle authorizations and you can use it from any device, UI or even command line. Doing that in the examples mentioned is not possible.