How much does it cost to design a mobile app

HOW MUCH DOES IT COST TO DEVELOP A MOBILE APP AND WHY IT IS IMPORTANT

To start with the role of app design, let’s draw the line between “app development” and “app design” notions. It may be the most confusing part in terms of calculating costs and building an app roadmap.
https://addevice.io/blog/how-much-does-it-cost-to-design-a-mobile-app/