Free Address Book, Sync.ME, OpenContacts, BusyContacts, Contacts+ , vCard Studio, Kylook, CircleBack, es-Builder, DAVx5, Open Contacts, Contact PEA, Microsoft People, Contactizer Pro, Memotoo, Contacts Sync, E-Z Contact Book, Simple Contacts, Cardhop, Kontact - KAddressBook, VENTURITY, Windows Contacts, fruux, DreamMail, STAR My Productivity Tools, Zoho ContactManager, Hoiio Live, OLContactSync, Relationship, GeneralSync, Addza, Leadfly, OneContact, Contacts Express, Soocial are some alternatives to Google Contacts.