Coinflash, featured on the Product Hunt website this week, will round each of your credit and debit card purchases to the nearest dollar, tally the total difference, and automatically invest that amount into a cryptocurrency of your choice through a Coinbase account. $1.00 per month.
Crumbs App lets you connect your debit or credit card and every purchase you make will be rounded to the nearest dollar. That difference will be invested for your on a daily basis in the cryptocurrency best suited for your investment preferences and goals. $1.99 per month.