Got spare change? This new app will invest it into Bitcoin for...

Got spare change? This new app will invest it into Bitcoin for you
BY KIA KOKALITCHEVA, fortune.com

Designed for young professionals, Lawnmower takes a few cents here and there, and invests them into Bitcoin.

To help today’s young build up their wealth, a new breed of no or low-fee financial tools built on top of slickly designed smartphone ap…