Helping travelers connect with locals for recommendations, tips, suggestions, local advice, Nomly is a free messaging app for iPhone. It's kind of like a concierge, except it can be used when you get to your destination city. Instead of searching online, a traveler can ask anything and a local expert will message them.
As of early 2016, it's live in Houston and Austin.
I did not create the product, but I have met the founder.