Recently, Forrester Research conducted a recent survey and reported that US and UK smartphone owners “use an average of 24 apps per month but spend more than 80 percent of their time on just five apps.” Regardless of how true this number is, it is true that despite the potentially higher number of apps that people have on their phones, they tend to use only just a few apps most of the time, and it’s usually the more popular ones.
Based on the Forrester survey data, It seems that Facebook and Google are tied for the most most used by mobile-users. Even though Facebook has the top spot, Google seems to be slightly ahead of Facebook overall seeings the aggregate time that is being spent across all of Google’s apps.
The chart provided below is from Forrester Research, Inc. (2015)
To help back up the data given by Forrester, data from comScore seems to show similar results. Similar to Forrester, people tend to use a few top apps, regardless of how many apps they actually have on their phones. Keep in mind, the data doesn’t reflect the amount of time spend on each app.
The following chart is from comScore (2014)
eMarketer has some data that shows, from an advertising perspective, that the majority of US mobile ad revenues are also concentrated in a relatively small number of top apps.
eMarketer has this chart from 2014):