Having just a couple hundred dollars saved up can mean the difference between a catastrophe and a costly inconvenience when an unexpected expense arises, such as a flat tire. On Thursday, the nonprofit announced it landed a $1.5 million investment from Fortune 500 company Prudential Financial to scale its digital savings platform, which encourages and rewards people as they build their savings. “There is a great deal of financial insecurity in this country,” said Leigh Phillips, CEO of SaverLife.