Backup is not good enough, undo is also nessary. They need function which manages contacts.
Hung when there too many duplicates. What is the point.
This app is really useful and simple. I could manage my duplicate contacts in google accounts without any hassle.
Excellent app to avoid repetition of contacts
Very nice cleared all duplicate contacts
An All-in-One Dialer, Caller ID, Block Spam, Call Recorder, Phone Book & Contact