Subversive
How Cal AI Hit $50M ARR in 2 Years by Nailing Product/Channel Fit on TikTok
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Daniel Heintzman is Head of Product at Cal AI, an AI-powered calorie tracking app that grew to over $50M ARR in under two years before being acquired by MyFitnessPal in December 2025. Before Cal AI, Daniel was a product designer with stints at Facebook's Growth team, Robinhood, and Mailchimp, and was later a Designer in Residence at early-stage product fund Chapter One. He started his career as…