Denver-based health care app developer Welltok announced Wednesday that it has raised $22.1 million in Series C funding, a round led by New Enterprise Associates with new participation from tech giant IBM.

It is IBM's first direct investment from the recently formed Watson Group. IBM created the group named after its supercomputer "to advance new cognitive computing capabilities," with plans to invest $100 million.

In November, IBM selected Welltok as one of three early-stage partners to develop Watson-powered apps. Under the partnership, IBM said Welltok would leverage Watson's supercomputing capabilities for its social health-management app, called CafWell Concierge.

The CafWell platform will use Watson's computing power to read millions of pages of data within seconds to deliver health-care-related reports tailored to individual needs. The app will also reward users for engaging in healthy behaviors. For example, as individuals take actions to lower their Body Mass Index, their health-care premiums would be reduced.

"Watson is one of IBM's most prized innovations, and by sharing it with organizations like Welltok, we aim to fuel a new ecosystem that accelerates creativity and entrepreneurial spirit," IBM Watson Group senior vice president Mike Rhodin said in a release.

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Denver's Welltok raises $22 million for Watson-powered health-care app