iContacts - All-in-One iContact & Group Manager ...

Best app all in one - contact management simpler for your iPhone.
- Manage contacts : Create, delete.
- Make Calls and SMS quickly.
- Creat and manage group: add an contact to group, delete contact from group, send sms to all members in group.
- Quick search with number to show contact name.
- Backup contacts: Backup with vcf file for Dropbox backup, Email backup or Restore to Contacts or for new your iPhone.
- Improt contacts from file, and dropbox for new iPhone.

How to use BlockCalls Tab:
-First you need to create a named option is Blocked
-Add the phone number in contacts to Blocked (Option Name).
- Press Acction and choice "Export to Contact" for create new contact on contacts on your phone.
-Then on settings choose Phone, continue to select Blocked to more contacts with the above option name in to Blocked the phone number that you blocked.
-After creating a similar AllowCalls you to add it to Favorites, the number inside the AllowCalls can call for you when you use the function "Do Not Disturb"
You can Press button "?" to see How to BlockCalls or AllowCalls in BlockCalls Tab.