It's simple, quick, and it's free! – Contacts Backup + Transfer Review

Kind of sceptical at first since all the other contact export apps have in-store purchases or ads. This one is quick and can send via email or to cloud. Creates a vcf (Vcard) attachment of sent by email setup in iPhone. Nice and simple without the extra crap. Very well done!
Review by CSharpster on Contacts Backup + Transfer.