More than two-thirds of US adults use a mobile phone for texting and calling, and nearly half of them use a cell phone for calling, according to a new survey from Recode.
More than four-in-ten US adults say they use a messaging app for social networking and about half use a social media app.
In the last three years, messaging apps have seen a significant growth in usage.
About two-in the last five years, they have grown in popularity by about 3.5 percent per year.
In a similar trend, mobile messaging has exploded in popularity.
The last three-year increase in mobile messaging usage is about 4.5%.
In 2016, the number of mobile users reached a peak of 2.3 billion and was down 3.6 percent from the year before.
Mobile app usage has been increasing since the start of the year, but the growth has slowed to the point where apps are becoming a niche for most users.
Mobile apps are the most popular mobile device in the United States and dominate the social networking space, according the survey.
The survey also found that the number and usage of mobile apps have been declining for several years.