A private tool used by one person to keep his own address book in order.
Mero OS Contacts reads the owner's own Google Contacts so that his contact records stay accurate and free of duplicates. With the owner's approval of each specific change, it can make a small set of edits to his own contacts: add an email address to a card, restore a phone number or email address, set a name he chose, record a link to his own CRM record, and remove a duplicate card that an earlier sync created. It never sends messages and never contacts anyone.
Only the owner. It is not offered to the public, and no one else can sign in to it.
See the privacy policy. In short: the data stays in the owner's own Google and CRM accounts, and nothing is sold or shared.