Zew App - First time

First time creating an App from scratch. A simple and fast messaging app without needing to text, just send a quick BUZZ, or as the app name, a quick (ZEW)! You can send & receive 5 types of notifications with your friend or groups. (food - alert - zew - love - on my way)

I would really appreciate your thoughts in the design and the idea and if you have some pointers to work on, i would be grateful :)