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Smartphone apps account for half of all time spent with digital media, according to comScore's Mobile apps report, and two companies own the overwhelming majority of the most-trafficked apps: Google and Facebook.

Expand chart
Data: comScore; Chart: Chris Canipe

Overall, when it comes to time spent on mobile, 87% of mobile time spent is on apps vs. only 13% on mobile web, even though mobile web often receives higher traffic.

Why it matters: Smartphone users spend 96% of their app time within their Top 10 most used apps and Smartphone users spend half their time on their #1 most used app, according to comScore. Google and Facebook own the overwhelming majority of traffic to these apps and are the #1 app for every age group.

  • Younger users love apps: Users ages 18-24 spend a whopping 66% of their total media time in mobile apps, or 3.2 hours per day on mobile apps. Younger users are more likely to place YouTube as the top app, instead of Facebook and are much more likely to rank Snapchat as a top app.
  • Facebook's app dominance: When it comes to desktop and video traffic, Google is king. But on mobile, Facebook is the clear winner. Facebook maintains its position as the #1 app in monthly users, with 81% penetration among mobile app users. Nearly half (46%) of smartphone users have Facebook on their home screen.

Top apps by category and population penetration in the U.S.:

  • Social: Facebook, 93%
  • News: Apple News, 77%
  • Retail: Amazon, 75%
  • Gaming: Words with Friends, 67%
  • Travel: Uber, 27%
  • Sports: ESPN, 23%
  • Dating: Tinder, 11%

Follow the money: in-app advertising has become the one of the fastest-growing mobile ad mediums, with revenue set to surpass $53 billion by 2020. App Annie estimates that by 2020, gross revenue across all app stores will exceed $101 billion globally.

Go deeper

Tim Scott hopes to reintroduce version of GOP police reform bill

Photo: Stefani Reynolds/Bloomberg via Getty Images

Sen. Tim Scott (R-S.C.) told reporters Wednesday he plans to reintroduce his police reform bill or a similar proposal in the coming weeks, and that he has discussed a potential compromise with Rep. Karen Bass (D-Calif.) and Sen. Cory Booker (D-N.J.).

Why it matters: Eyes have again turned to Washington to take steps to address police reform in the wake of Derek Chauvin's guilty verdict Tuesday, after efforts stalled in Congress last year.

Biden announces small business tax credits for vaccine PTO

Photo: Doug Mills/The New York Times/Bloomberg via Getty Images

President Biden on Wednesday will call on all employers to provide employees paid time off to get vaccinated or to recover from any side effects, and he'll include a paid tax credit for small businesses to do so, administration officials said.

Why it matters: The administration sees places of work as highly influential in making shots more convenient for working adults who are in high-risk industries.

White House unveils plans for high-profile climate summit

Illustration: Aïda Amer/Axios

The Biden administration offered new details this morning about the big, virtual climate summit Thursday and Friday and signaled they expect new emissions reduction and climate finance commitments from multiple countries.

Driving the news: The administration said 40 heads of state would attend, including Russian President Vladimir Putin and President Jair Bolsonaro of Brazil.