Notes added in mobile app are not associated with the company, the notes are associated with the contact where the note is started.
Hi @isatufan,
By default notes only directly associate with the contact. On the desktop version you then have the option to associate the notes with companies as well. In the app, this is not a functionality.
If you would like to see the ability to associate notes with companies in the application, I would recommend creating an idea in the ideas forum.
Thanks,
Jenny
Similar requirement has been expressed in another topic here:
HubSpot-Ideas/Contact-Notes-should-sync-between-contact-and-company-records