The goal was to create a beer-centric version of another app that was popular at the time, Foursquare. But instead of checking into a location, users "check into" a beer.
Launched in the fall of 2010, Untappd arrived as thousands of new brewers and their many thousands more new beers would hit the market. Today, Untappd has 3.2 million users who rely on it to keep track of an even more crowded craft beer market.
Avola, who lives in New York and serves as the company's chief technical officer, studied computer science and has a master's degree in IT. He built the site and its applications and handles all the back-end operations. Mather, who lives in Los Angeles, is the company's CEO.
While Avola wrote plenty of code in school, applying those lessons in the real world proved to be an education of its own.
"They don't really teach how to scale at this level when you're in school," said Avola. "They teach you to build queries for 100 people, not millions of people, so it was kind of a trial-and-error situation for us."