Only because 0 isn't an option – Contact Cleaner - Delete duplicates, merge contacts, sync with Facebook, and backup address book Review

It crashes...bad! I can't even figure out exactly how to use it because every time I tap something it crashes. (So glad I got it on a free day!) don't waste your money!
Review by Quil of LightingBlade on Contact Cleaner - Delete duplicates, merge contacts, sync with Facebook, and backup address book.