Sage Haven announces the official launch of its safer messaging and voice calling app for kids, following a successful beta period, alongside $3M in pre-seed funding. The round was led by top Silicon Valley investors, including Hustle Fund, How Women Invest, LaunchTN, NextBlue, Gaingels, ExitFund, Graham & Walker, Fuel Venture Capital, a16z Scout Fund, Accel Scout Fund, and Kleiner Perkins Scout Fund, with participation from former U.S. presidential candidate and Noble Mobile cofounder Andrew Yang, the cofounder of SoFi and more.