Acorns is a US financial tech company known for its micro-investing app that helps people save and invest spare change through automated "Round-Ups" of purchases, using diversified Exchange-Traded Funds (ETFs) in expertly built portfolios. It offers accounts for general investing (Acorns Invest), retirement (Acorns Later), and kids (Acorns Early), alongside banking services, aiming to make wealth building accessible through easy, long-term strategies and financial wellness education, all under a transparent monthly subscription.