Compatibility: OS X 10.9 or later 64-bit

Manage contacts, contact groups and create mailing lists for mass email. 

GroupsPro is the best way to create and organize groups of contacts and create mailing lists. A mailing list contains members of groups or individual recipients. 

Features: 

• Create and modify groups of address book contacts 

• Assign contacts to groups (single and fast assigning) 

• Create and modify mailing lists for mass emails

• Search for names, phone numbers, email addresses, postal addresses, departments and notes within all contacts 

• Create and modify contacts 

• Print single or multiple contacts 

• Export contacts to Excel or CSV file 

• Compatible also with macOS 10.12 (Sierra)

• And more 

Mac App Store: https://geo.itunes.apple.com/app/id876504539