Designing and building an app for a mobile phone or another device is not easy, and the design is likely to differ from that of your website. Applications should have one main purpose in mind, and occasionally they can work like simplified ecommerce websites.

If you require an ecommerce application, then the design is likely to be more complex, as there will be more things to think about, if it was a straight forward app with updates and latest news, design may not need to be difficult, but twitter way the design is important.

Before an individual downloads an app, there is a high probability that they will look at the screenshots. This can give them an example of how professional the app is. It can give them a taste of what the app offers, and if the design is not up to scratch, the likelihood is that they will move on to another.