Duolingo VP Gina Gotthilf has overseen the company’s growth as it exploded from 3 million to 200 million users. One tool that’s fueled this ascent? A/B Testing. Read on to learn from her favorite tests.
Alphabet Inc. has held conversations with Lyft Inc. about a potential investment in recent weeks, signalling strong support for Uber Technologies Inc.’s main U.S. competitor, according to people familiar with the matter.