Hey everyone, we just released DuoBook today, an app that provides alignment between the eBook and audiobook versions of a story. We built this in 12 weeks with a team of three, and are launching with a very small catalog (more content is on the way soon). Alex (lead iOS developer) and I (product lead) are here, and would love to answer any questions you have, or just hear your thoughts on DuoBook!
Well that's an awesome comment for us to read! Thanks for the feedback. We're offering our five launch titles for free right now to our earliest users, but we do plan on selling content in the near future :)