Popular saving and investing app Acorns has acquired Pillar, an AI-powered startup built to help manage student loan debt, in its second acquisition of 2021. New York-based Pillar helps consumers optimize their debt payments by focusing first on student loans. It launched in May 2019 with $5.5 million in seed funding led by Kleiner Perkins. The companies declined to reveal the financial terms of the deal, only noting that within six months of launching, Pillar managed over $500 million worth of student loan debt of more than 15,000 borrowers. Michael…
