United States by Monthly Active Users Top Apps of 2018: United States Combined Top Games of 2018: United States Combined iPhone and Android Phone Monthly Active Users iPhone and Android Phone Monthly Active Users Rank App Company Rank App Company Facebook Facebook Pokémon GO Niantic 1 1 Facebook Messenger Facebook Candy Crush Saga Activision Blizzard 2 2 Amazon Amazon New Words With Friends Zynga 3 3 Instagram Facebook HQ - Live Trivia Game Show Intermedia Labs 4 4 Snapchat Snap Helix Jump Voodoo 5 5 Netflix Netflix Clash of Clans Supercell 6 6 Pinterest Pinterest Fortnite Epic Games 7 7 Pandora Music Pandora Solitaire by Harpan Zynga 8 8 Twitter Twitter Clash Royale Supercell 9 9 Spotify Spotify Wordscapes PeopleFun 10 10 Apps are ranked by combined iPhone and Android phone average monthly active users (MAU) across 2018. Pre-installed apps (such as YouTube on Android phone and Safari on iPhone) are excluded. 149 COPYRIGHT 2019