Contacts can be easily grouped into by drag & drop.
As you can set group's icons and colors, group management is so much simpler.
In addition, you can show call logs and send group mails.
The best app for those looking for a free contacts grouping address book.
Try it out!

Main feature
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- Grouping of contacts with drag & drop.
- Group creation, modification and deletion.
- Total 120 group icons with 60 types x 2 patterns.
- 40 group colors.
- Show call log.
- Search by name, phone number, email, or company.
- Send group email.
- View and manage call log.
- Alter tab layout (Paid version).

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Free version has ads and limited functionality.