Write some software

I need you to develop some software for me. I would like this software to be developed using C or C++. Purpose: It's a messaging app that will allow users to send bulk messages to their contacts or group of contacts. Functionalities (Summary) 1. Users can register on the Message Platform through the app 2. Users can send messages to their contact list. 3. User can import their phone contacts into the app 4. User can categorize contacts by creating contact groups 5. User can send message to a contact or a contact group 6. User can send a scheduled and recurrent message for a particular date 7. User can view message history and possible delivery report. 8. User can top-up sms units and view balance