First, app is registered defensively in categories 9, 35, 38 and 42 (related to software products and services), but the above categories are not the core, because APP is just a carrier, not a commodity or service that is really sold to consumers.

Second, the registered trademark of app should choose the category of core goods and services. It depends on what services your APP provides. Examples are as follows: Alipay APP, which provides financial services and registers 36 categories; Taobao APP, providing e-commerce platform and sales, registered 35 categories;