Tinder is the world's leading social app for meeting new people. With its global reach, people in 196 countries around the world are swiping right to connect with others, making Tinder a top 10 lifestyle app available in more than 48 languages. THE CHALLENGE Tinder’s CTO, Maria Zhang, and her engineering team encountered several challenges to trying to provide a consistent user experience in markets around the world. ? Not enough actionable data. Tinder’s testing platform relied on virtualized tests that didn’t provide critical insights. “We would hear anecdotes or read customer complaints,” says Maria, “but we really didn't have quantified data to know exactly what was causing these issues.” ? Caught in an unending cycle. Each new release of Tinder’s app contained a new set

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