I have specialization in mobile UI designing with more than 6 years of experience.

I know all the user interface guidelines of designing app both for iPhone and Android. My design will support all the resolutions of Android ( XXHDPI, XHDPI, HDPI and MDPI) and iPhone ( Retina display).

Please have a look on my work process here:

https://www.behance.net/gallery/24847487/Mobile-app-UI-for-Cafe

I can provide you fast and quality work in time with unlimited revisions and unlimited design style till your satisfaction.