You can do just that with Raiz.

We're the world's first truly automated, mobile, and web-based investment app that lets you invest small amounts regularly, invest your spare change into a diversified portfolio of stocks and bonds, and give your money a chance to grow in the background of life.

Our app helps you do just that by letting you:

• Invest small amounts regularly. Raiz is a great way to invest small amounts of money every day. Simply set how much you want to invest and Raiz will do the rest.
• Automatically round-up the spare change from your everyday purchases and invest it into a diversified portfolio of stocks and bonds. Invest in the background of life.
• Set up automatic daily, weekly or monthly recurring investments – whatever schedule suits you.
• Make one-off investments to boost your Raiz account as often as you'd like.
• Instead of trying to pick individual stocks, Raiz Diversifies your investment across hundreds of the most widely held Australian and international companies, corporate bonds, government bonds, and cash.