Need Feature in Calendar Icon

Hello Guys,

I have an iPhone 5 using the factory calendar.

I want a calendar aap that when I have an appointment a hour set when it got to that time it make a sound and also shows a number count in red circle over the calendar icon or maybe the icon can change color

This way when I look at my iPhone, this will call my attention that I have to review my calendar

Do you know what calendar aap has this feature?

Thx,

Isaac