There’s a new top robot in town

Betterment, a seven-year old “robo-adviser” wealth manager, surpassed rival Wealthfront this week after surpassing $3 billion in assets under management — nearly tripling client funds since January, CEO Jon Stein told The Post. The milestone comes seven months after an online spat erupted among Betterment, Wealthfront, and Charles Schwab, which…