The app changed its category in the Apple app store from social to lifestyle around 2018, Roberts testifies. “When users come to Pinterest expecting it to be like other social media apps, they tend to be confused about how to use the product since people are not really forefront of the experience,” she says — it’s more about finding things they’re interested in. “It just doesn’t set the right expectation if people have a mental model of another social media company when they come to Pinterest.”