Having an APP a customer can download to their phone can have a lot of benefits. The first advantage is charging customers to provide an ogoing service in the app or to track customer’s interest in your app which leads to more sales in your app. Feature in your app can be the second benefit which keep your customer in your app and drive more traffic. When your app becomes more popular such as a gaming app or DIY app you can charge for ad traffic within your app. Apps vary from size and feature so choose the one that fits your interest to attract future customers or viewers to download and share your app.