WillowTree Apps is a software development company that specializes in mobile app development, web development, and voice technology. The company was founded in 2008 and is headquartered in Charlottesville, Virginia. WillowTree Apps has worked with a variety of clients, including HBO, PepsiCo, and National Geographic. The company has won numerous awards for its work, including being named one of the top mobile app development companies by Clutch.co. WillowTree Apps has a team of over 1,000 employees and has offices in Charlottesville, Durham, New York City, and Columbus.