What was this built with??

Hi Emily. I can confirm it was made with the Turtl digital marketing tool that Math mentioned. It has some back-end functionality that's quite different from an e-learning tool, hence why we're using it for some ebook content. But from a front-end perspective, there's definitely interesting overlap with it and e-learning.

Out of curiosity, what aspects of the experience do you most wish you could replicate in Storyline but can't at the moment?