It’s not enough for Facebook Inc. to cash in on workers wasting time on the social network at work, it wants a piece of Slack, LinkedIn and Google Docs action, too.

Facebook’s FB, -2.04% long-awaited workplace-oriented app is due to launch Wednesday. The biggest social network on the planet has over 1.3 billion members, but it hasn’t yet cracked the workplace like the communication forum Slack, Google Inc. GOOG, -2.74% , and Microsoft Corp. MSFT, -0.38% and even LinkedIn US:LNKD , which markets itself as a professional social network. Facebook’s “Work” collaboration tool on Apple’s AAPL, +0.15% iOS and Google’s Android operating system will allow employees to share documents and data, The Wall Street Journal reports. Facebook won’t track users on this app or hold onto their data, the “Digits” blog reports. (Facebook did not return requests for comment.)

“Facebook is running out of humans,” says Adam Levin, co-founder of online-security company Identity Theft 911. Some IT departments have actually taken steps to block Facebook in the work environment as people are spending too much time on it while at work, he says. Workers spend between 60% and 80% of their time at work “cyberloafing” or surfing the Internet for personal reasons, a Kansas State University study published last year in the journal Computers in Human Behavior found.

But despite efforts to curb its use at the office, Facebook is already a constant presence in the workplace, says Tim Sackett, president of HRU Technical Resources, an information technology and engineering staffing firm in Lansing, Mich. “Facebook is really the only other social media platform that’s a threat to LinkedIn’s empire,” he says. “It has more data and more users. It has electricians, plumbers, truck drivers, teachers, accountants, restaurant managers and entry level college students of every major.” With only 322 million users, LinkedIn is still a minnow compared to Facebook’s Leviathan.

Facebook is also a fun social network where people have learned about creating and curating their own personal brand and how to present themselves online for job hunters who investigate their digital footprint. In part because of that relationship, Facebook could usurp LinkedIn much in the same way a more intuitive iPhone replaced the BlackBerry for both work and play, Sackett says. “That is the one giant drawback of LinkedIn,” he adds. “People only go to LinkedIn when they’re looking for a job. They go to Facebook every day, all day. Facebook at Work has the real potential to eat LinkedIn’s lunch.”

That said, Facebook has had a challenging time trying to break away from its origins, says John Bonini, content marketing manager of Impact Branding & Design in Wallingford, Conn. Facebook Graph, a search took that took aim at Google Search; Pages, a news magazine app; and Slingshot, a Snapchat-like instant messaging app, all failed to catch on in a big way, he says. “LinkedIn has positioned itself as a publishing platform,” he adds. “I have published articles on LinkedIn and earned thousands of views from them.”

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Facebook’s constant privacy policy changes and data aggregation on its main social networking app may still make companies nervous. “I’d be concerned about sharing anything I don’t want to become public with Facebook,” says technology consultant Jeff Kagan. And others say convenience and familiarity could trump such concerns. “The number of workers who use Facebook will anticipate a transition to Facebook at Work easy and seamless,” says Steve Langerud, a workplace consultant based in Grinnell, Iowa. “I would not be concerned about using this tool.”

(This story was updated on Jan. 14, 2015.)