I do design UX (User Experience) and UI (User Interface) of mobile apps, in Android and IOS (apple) platforms. UI/UX is as important as coding of app, Your user must have good feelings about your app, and it is the magic of UX/UI. Developers usually can't design UI and UX well. You need to have different developer and designer. So I'm the designer. Trust me! I will send the design in .XD, .PDF, .SVG, .JPG, .PNG,... Layered of merged. Also I will make a animated prototype to see the UI/UX. I use these apps: Adobe XD, Adobe Photoshop, Adobe Illustrator, Sketch, Principle