In 2014, Levitt reached out via e-mail with a résumé to Calm's co-founders, Alex Tew and Michael Acton Smith. She has held the title of Head of Mindfulness at the app since November 2014 and has undisclosed equity in the company. As the Head of Mindfulness, Levitt leads the creative development of content on Calm. "The Daily Calm" is the app's most popular feature, which Levitt writes and then records her narration in a studio in Toronto. According to The New York Times, as of July 2019 she had written and recorded "hundreds" of meditations. That same month CTV news said she was "responsible for the daily meditation practice of more than two million people."
