In other words, if you want to be successful with your app design and deliver a great user experience for your app, you need to keep your app design as simple and clear as possible, not overloaded, fluid. Main factors that determine this decision are Visual Complexity and prototypicality: the complexity of the visual design and the representativeness of a design for a given category of websites. Once that user decides to stay on screen, it takes about 5 to 10 seconds to decide if he will keep to read the full content. Researches on websites reading habits and interactions have shown that it takes as little as 500 milliseconds for a user to decide whether to stay on your screen or leave. App design plays a vital role in creating an engaging experience for your users.

Plan your App Design: create a mockup.

Check out your competitors, their review, get inspiration for your design.Find out if other mobile apps on the market are performing the same business /concept.Which features are most desirable and will help you keep your users engaged.What is your target audience? Your app should be specifically designed to add value to your target audience.Set the goals for your app: research the market and define your concept. To do that, it would be helpful to answer these questions:.The first stage of your app building is to understand what your app is aiming to deliver:

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