Parks Associates (www.parksassociates.com) has announced new digital health research showing that 21% of U.S. broadband households use a wellness, fitness, or diet app.

The firm's research reveals moderately positive NPS scores for these apps, with 38% of respondents likely to recommend them to a friend or family member, while 23% are hesitant to do so, resulting in an overall NPS of 15.

"NPS scores for wellness apps are below those for other, more mature industries such as tablets or online entertainment services," said Harry Wang, Senior Research Director, Parks Associates. "There are also great variations by app brands, with Fitbit scoring the highest NPS at 32. The wellness app industry has a lot of catchup work to gain consumer trust, and key to their future success is to focus on delivering an excellent user experience through customization and personalization.”