Front is a shared inbox product that works just like email and is used by companies like Stripe, Shopify, and Dropbox to manage conversations with customers. On Tuesday, Front announced it will further its mission to make work more enjoyable by acquiring the calendar software startup, Meetingbird. The acquisition is the company's first and represents a big milestone for first-time CEO Mathilde Collin who co-founded Front in Paris, France in 2013. Front has raised over $79 million in hopes of disrupting competitors in the space like Zendesk.