This app lets you organizing contacts automatically by creating smart groups. A Smart Group is updated automatically based on criteria you specify. You can send email and text/sms to smart groups on the fly.
Feature list:
Send Group SMS/Text and Email
Assign contacts to multiple groups at a time
Support customized templates and signatures
Support distribution list management
Manage Smart Groups
Smart Groups can automatically organizing information in your address book. The possibilities are endless with Smart Groups. They can be used on any of the criteria stored and will auto-update whenever a change is made.