Ofuz – Open Source Contact, Task & Invoice Manager
Ofuz is an open source application (also comes as a paid/hosted service) that aims to control the full business cycle for teams, freelancers or service providers.
It has powerful contact management features as contacts can be imported from almost anywhere, Twitter, Facebook, Gmail, etc.
Contacts can be categorized with tags and notes or e-mails can be attached to them.
Team members and/or customers can be invited to share files and emails, join discussions and get things done.
The time worked on projects can be tracked and timesheets/reports per customer/project/team member can be generated.
Ofuz also enables you to create invoices that will be sent for once or every selected period automatically (recurring).
And, with the web forms feature, you can grab leads from your website + send personalized mailings to your users.
The application is multilingual, has a REST API to integrate with any other tool and built with PHP/MySQL.