Shared Contact List (fi.protieto.procontacts) on Google Play
Shared Contact List allows you to keep a shared phone book with multiple people such as a family or a team. We use Shared Contacts to keep our contacts and info, it's our CRM (customer relations management). We have tried paper, excel and CRM systems before creating this app. When you get a new member in your community, he has all the info he needs in his phone instantly. You can use Shared Contacts without lengthy configuration and training. You can send SMS messages, emails and make calls from Shared Contacts. You can also comment what you have done with the contact or contact group and see what others have documented.Works offline, automatically synchronised, easy to set up and easy to use.