Apps like GroupManager

Here are some great alternatives to GroupManager by Smallbouldering Projects :
Google Admin
Google Admin
★3.6
Contacts
Contacts
★4.1
Shared Contacts® : Contact App
Shared Contacts® : Contact App
★3.8
Multi SMS Sender (MSS)
Multi SMS Sender (MSS)
★4.0
Mad Contact Groups
Mad Contact Groups
★3.9
Contacts plus
Contacts plus
★4.5
Contacts Phone: Simple & Clean
Contacts Phone: Simple & Clean
★4.6
Simple Contact Manager - Easy
Simple Contact Manager - Easy
★3.5
Contacts
Contacts
★4.6
Contacts
Contacts
★4.2
Smart Contacts
Smart Contacts
★4.3
DW Contacts & Phone & SMS
DW Contacts & Phone & SMS
★4.3
DW Contacts & Phone & SMS
DW Contacts & Phone & SMS
★4.5
Contacts
Contacts
★4.0
Contacts
Contacts
★4.4
Contacts
Contacts
★4.3