I suppose they have the same obligations as the large businesses. This is because the app developers would be focused on establishing themselves. In order to establish themselves, the first thing they would need to do is to ensure customer satisfaction. The more satisfied the customers are, the more positive the reviews would be and this will eventually lead to more people downloading the apps. This way the developers would fancy their chances to establish themselves. Also on ethical terms, the app developers are indebted to provide good service to the customers, because they are provided a free platform where they can publish their work and make money.
