A mobile notary travels to an agreed location. This is often the right choice when documents must be wet-ink signed, when a receiving party will not accept an electronic notarization, or when signers need in-person help organizing a package.
Remote online notarization happens over a secure video session with electronic signatures. It can be convenient when the document type, signer, and receiving party all allow RON.
The receiving organization—not the notary—usually decides whether a wet-ink or electronic notarization is acceptable. If you are not sure, ask them before you book.