Two former Google employees from Boulder, Colorado, hope to spark the imaginations of future generations with a subscription service that teaches kids how to code; a woman from New York, New York, designed an app where children can use an animal plus... (more)h toy to send and receive voice mails; a self-proclaimed serial plant killer from Denver, Colorado, takes the guesswork out of growing indoor plants with software that automates water, light and plant food; and two men from New York, New York, tell the Sharks they have changed a dynamic in the hotel industry with an app and website that allows customers to book a day room. Also, an update from InstaFire fire starter, which Mark Cuban and Lori Greiner invested in during season 7.