Dropbox has another start-up in its kitty - messaging, conferencing and voice service Clementine Labs.

San Francisco-based Clementine Labs (formed in 2013) announced the acquisition by Dropbox on Wednesday, July 22, in a blog post. The exact terms of the deal and the amount Dropbox acquired the start-up for is not known.

For the unfamiliar, Clementine's app was launched in 2014 and offers messaging and internal collaboration tools for activities such as conference calls, chat services etc. that are not connected to a user's personal number and are the perfect solution for business users. People can use official software to connect for business purposes via their personal devices.

"We're now excited to announce the next stage of our journey - we're joining Dropbox," noted Clementine in a blog post. "Our mission and passion for workplace collaboration remains the same. Our stage will grow dramatically as Dropbox builds on our technology to engage with its over 400 million users and 100,000 businesses."

The start-up also revealed that Clementine's messaging service would be closing down owing to acquisition by Dropbox.

For those wondering what will happen to the free parts of its app - current users can continue to enjoy the free services for another month as it will remain active till Aug. 31. If you're a subscriber - no need to fret - as Clementine promises to offer support regularly for both its premium and regular subscribers during the transition period.

Dropbox has been on an acquisition spree this year. In April, it acquired photo app Loom and Hackpad close on the heels of launching its own photo app Carousel.

Dropbox has been vigilant in strengthening its enterprise services. The company reportedly has over 100,000 companies that deploy its software. Dropbox also has over 400 million users who are registered with the service and its suite of products is pretty popular with users. Dropbox also redesigned it Android app recently and introduced a tool which allows its users request for files from non-Dropbox users as well.

In June, we reported it even beefed up its security to entice corporate users.

What plans Dropbox has for Clementine is also not known, but it is likely that the former will use the latter's technology to strengthen its existing collaboration tools.

Photo:  Ian Lamont | Flickr