iOS: For some reason, coins still exist. Most transactions will leave you with an arbitrary number of them either literally or digitally in your account. Acorns puts them to good use by rounding up your transactions and saving the difference.
The app takes the spare change from each of your transactions and adds them to an account that invests in index fund ETFs. You’re not going to retire on this amount, but it’s a pretty smart way to keep contributing to your savings without much effort. The company states that an Android app and web app are in the works, as well.
Acorns | iTunes App Store
Source: Lifehacker http://ift.tt/1qb5ndQ