William LeGate is an American 🏷️#entrepreneur and software developer who was named a Thiel Fellow in 2013, receiving the fellowship's $100,000 grant after finishing high school. He first drew attention at 14 for creating the iOS app Fake-A-Text, which passed five million downloads.

At 20, LeGate raised funding from investors including Mark Cuban and Tinder's founders for Ponder, a social app he built with Tyler Mateen. He later served as CEO of PredIQt, a decentralized prediction market built on the EOS blockchain, and worked as a growth consultant for Kalshi. Since September 2024 he has been marketing lead at the prediction-market platform Polymarket.