We are looking for a barebones chat app like whatsapp/group me for phase 1 of our project. Features include:
1) Register / Login Authentication with Mobile #.
2) Contacts Importer
3) Bulk Invite via text/email
4) Individual Chat/ Group Chat
Developer should be familiar with Whatsapp or GroupMe and be able provide a scalable solution that will be built upon in future phases of the project (likely with the same developer). App is required for both Android and IOS platforms.