Investing spare change from daily purchases can be done with the popular micro-investing app Acorns. Through the integration of your credit or debit cards with the app, Acorns automaticallyaviator hack rounds your purchases to the closest dollar and allocates any leftover change to a well-diversified portfolio of bonds & stocks. Without actively managing their investments, users can increase their wealth over time by using this passive investing strategy. Acorns also has a feature called "Found Money" that gives users cashback rewards for shopping at participating brands.