An app developer knows how to combine the right colors, images and text to create an app that is pleasing to look at. This is one of the main factors that determine whether or not a visitor will stay on your app for a long time. The longer a visitor stays, the higher the chances of them getting converted into customers. A good app developer also knows how to use SEO in an effective manner and improve app store optimization. This helps your app to climb up the ladder of search engines and it helps you to become more popular and well known.
An app developer will ensure that your app will load quickly irrespective of the data you want to put on the app. You just need to decide the data that you want displayed on the app and the app developer will ensure that all the data is incorporated on the app without putting any sort of load on the web server. The app developer will ensure that all videos and data are incorporated in the app and the customer will not have to spend more than ten seconds waiting for the app to load. This is the kind of talent a good app developer has.
Another thing that the app developer would ensure is the app has no bugs and is prepared for any sort of contingencies. When an app is designed the app developer ensures that all bugs are ironed out during the planning and implementation phase. The app is also prepared for contingency situations such as extra visitors. If this is not planned for there is every chance that any extra visitors to the app will put a load on the web server and the app will crash instantly. Preparing for such contingencies is the job of an app developer.