You are designing a language learning application. All users can download the application and learn basic greetings and counting for free. To learn about grammar and other topics, users must pay a one-time fee.Which method of monetization does the application use?
You are designing an application hub page with sections that could include a lot of content. It is not practical to display all available content in every section. What is the preferred strategy for managing the content on the hub page?
You are designing an application for shopping list management. When users attempt to delete a list, you need to warn them and have them explicitly confirm the deletion.Which command surface should you use?