Hello Dear!
First thing your potential customers interact with, is your app's look and feel to decide weather to keep using your app or uninstall it. This might be the reason you are having trouble bringing users or keeping them on your mobile app or website. Do not worry.
You are at the right place.
I'm a professional UX/UI Designer with  4+ years of experience.
I'll appreciate you seeing my design-portfolio below.
Website PSD Design  https://www.fiverr.com/hadi_designers/design-photoshop-web-template-psd-website-or-web-design
Portfolio Link Â
https://www.behance.net/israrulhaq1
I also take deep pleasure in doing interactive prototyping for free, It helps developers to follow the instructions more accurately, saving you the hefty developments costs later on.
I work with great care on creating a UI UX Design that stands out.
Plus+ I will be giving you 24/7 support and assistance.
All Designs Aligned with both:
Google Material UI
Apple Human Interaction Design Principles
Feel free to discuss any idea right now!
I give my special attention to world changing ideas
For More info, Plz visit https://www.fiverr.com/hadi_designers/design-mobile-app-ui-ux-and-prototype