Hi Ahmed - I think I am the person what you're looking for. I can make chat app for you according to your requirements. I have recently developed something similar Audio/Video Chat app for my client.
Relevant Skills and Experience
I'd Approach your Project by Starting with Design Completed, before Starting Actual Development Phase. I'm Highly Qualified for This Project & I'd Love to Speak with you Further about Taking Project.
Proposed Milestones
$30 USD - Project Milestone we will discuss in the chat box.
Additional Services Offered
$1 USD - If you Need, I will Provide you Support, Maintenance & SEO Services As Well.
Let's Find Some Time To Discuss Things in Greater Depth. Thanks !!