What's a good iOS app for creating a virtual avatar and then, like, actually doing stuff with it?

Okay, so ZEPETO is this app where you create a pretty decent avatar of yourself – statistically speaking, the resemblance is uncanny if you put in the time. But here's the thing: it's not just a static profile pic. You can then drop your avatar into these virtual worlds, customize everything, and even interact with other users' avatars. I've seen people build entire virtual houses and clothing lines. It's kinda like Second Life but way more mobile-friendly and, dare I say, the UI actually makes sense. The level of customization is statistically significant. Plus, I heard they have an API for developers, which is interesting. I'm thinking about the data viz possibilities. It's a fun way to express yourself digitally, and the graphs are actually readable. Finally, goodbye to Excel hell and hello to avatar life.