Mailbox, the most hyped email productivity iPhone app recorded 1.3 million reservations before launch last month. Just one month after launching its  app to the public, Mailbox has been acquired by Dropbox, a cloud sharing service. Dropbox  helps over 100M people bring their photos, docs, and videos with them anywhere.

Dropbox and Mailbox

To help you fly through your email,  the Mailbox team redesigned the inbox to make email light, fast, and mobile-friendly. The app lets you quickly swipe messages to your archive or trash. You can scan an entire conversation at once with chat-like organization. Snooze emails until later with the tap of a button.

Mailbox will still run as a separate, standalone application. In a blog post, the Mailbox team stated ” Since launching last month, our service capacity has grown 2000x and we’re already delivering more than 60 million emails a day. That’s mind-bending growth for only a few weeks, and we’re just getting started.

Dropbox CEO Drew Houston told the WSJ that his company felt it “could help Mailbox reach a much different audience much faster.” Houston told the WSJ that Dropbox will use Mailbox’s tech to improve its own features, including handling email attachments.

Drew and Arash said in a blog post:

After spending time with Gentry, Scott, and the team, it became clear that their calling was the same as ours at Dropbox—to solve life’s hidden problems and reimagine the things we do every day. We all quickly realized that together we could save millions of people a lot of pain.

Dropbox doesn’t replace your folders or your hard drive: it makes them better. The same is true with Mailbox. It doesn’t replace your email: it makes it better. Whether it’s your Dropbox or your Mailbox, we want to find ways to simplify your life.

“Whether it’s your Dropbox or your Mailbox, we want to find ways to simplify your life.” Drew said.

Under the deal, the 13 employees of Mailbox owner Orchestra Inc.–including alums of Apple, Stanford University and Ideo–will join Dropbox. Terms of the deal weren’t disclosed but the price of the deal is rumored to be around $100 million in cash and stock.