Sketch is 6 years old now

https://en.m.wikipedia.org/wiki/Sketch_(application)

This was also the first thing I thought. Sketch is a well-known (artistic) design tool. I'm sure you fellas already know that but decided to stick with it anyway. In reality, it really doesn't associate with your product all that well, definitely not when compared with the photoshop-Sketch and what it's for.

Agreed. Honestly, when I first saw it I got excited because I thought it converted Sketch files to RN files (what it is is pretty cool but the name totally threw me for a loop)

As I'm big fan of this tool I need to agree that "Sketch" confuses a lot! Good point fella!

Not to mention the numerous results from Google SketchUp and Autodesk SketchBook that popup when you're searching for "sketch <help-me-with-something>"

Leave the name, our UI team will love the extra ambiguity.

My first thought is that it could be called Expo Sandbox. Plays off the Playground theme, and accurately reflects the usage.

Well, to be fair, Sketch chose a really common dictionary word for the product name.

I also got confused by the name

Brand new? And no, I don't think so. Sketch is awesome but it isn't a substitute for work that you would do in Photoshop.

Unless you were doing wireframes in Photoshop.