Building a simple Yelp-like app on Bubble takes around 30 minutes to create, starting from a blank page. The app has two main pages: one for submitting coffee shops and another to display them on a map. For the submission page, inputs include name, address, picture uploader, rating dropdown, and a map to verify addresses. After setting up the page structure, the workflow is defined to save submitted data as new coffee shop entries. The app also features a display page that shows a list of markers with ratings on a map, allowing users to see highly-rated coffee shops. With this basic setup, additional features can be added, such as refining search by location or user sign-up functionality.