The Acorns app is currently providing an excellent promotion to new users who sign up. Any user who signs up and is approved gets an instant $5 credited towards the account, free of charge. Promotion ends November 1st, 2015. Sign Up Now.
Taken Directly From www.acorns.com Support Page
What is Acorns?
Acorns is a financial service that helps you invest your money. We enable you to start early, invest often, and feel secure about your financial future.
How does Acorns work?
Acorns helps you proactively invest. We round up each of your transactions to the nearest dollar, and invest the change into a diversified portfolio. Simply connect a credit card, or debit card and a checking account, and tell us about yourself. We‘ll automatically recommend a stock portfolio based on information like your age, time horizon, investment goals and the amount of risk you’re comfortable taking.
What makes Acorns different?
Acorns offers a personalized investment portfolio, no account minimums, no commissions, and fractional investing—all in an app that makes it easy to fund your investment account.