Graph application is kind of a branch of a CRM application (Customer Relationship Management) and its main goal is to optimum the relations between the user and his/her contacts (mainly customers, business partners or any other person related to someone's job). Graph can be counted as a personal CRM and it can satisfy the needs of small business' owners or also the members of a sales team.
The user can review and analyze his/her communications with customers/contacts and try to get the best of out their relations.

Main features are:
Shimsi calender with all the events and vacations
Measuring the duration of incoming & outgoing calls with each contact and providing call log statistics
The ability to add notes for each contact
The ability to add notes after each incoming call
Showing recent user's notes related to the contact who is calling right now
The ability to add and configure reminders and adding contacts in the form of a group to it
Showing days with reminders differently in calender in order to help user's planning
The ability to add contacts to the app via cellphone's contacts