Clean Master is also integrated function of duplicate contacts remover, duplicate contacts merge and backup contacts. 

Contact backup of clean master allow users easily backup contacts and delete duplicate contacts
Duplicate contact remover: remove duplicate contacts from iphone, merge duplicate contacts iPhone and backup contact. The process of operations is very simple, clean master backup contacts on iphone in a few second with 1 click. Categorize duplicate contacts by name, phone, email and missing information. After that, you can remove duplicate contacts by merging them per as your choice.

Contact backup is very easy with contact backup app iphone function of clean master. You can assure the safety of your contacts list in a simple operate.
- Clean contacts that have no phone number or email
- Manage your contacts quickly
- Group duplicate contacts by name, phone, e-mail and merge duplicate contacts iPhone
- Contacts backup and restore
- Easy to delete duplicate contacts in one tap
- Keep your contacts list clean quickly and smartly from duplicate contacts.

Clean Master is a wonderful free iPhone contacts backup app which can help you to backup contacts. Free download latest version of Clean Master app on iOS here