Ride-hailing and reselling apps are on the rise.
That's according to comScore's "2017 US Mobile App Report," which gathers data about smartphone app use among US adults.
ComScore found that the ride-hailing apps Uber and Lyft were among those that had grown most rapidly since 2015, along with the resale apps Letgo and OfferUp.
ComScore measured apps with at least 5 million monthly visitors that have been growing steadily since June 2015. While apps like Musical.ly, Waze, and Uber have all taken dips from time to time, the top 10 apps have at least doubled their unique visitors over the past two years. Some, like Bitmoji, have seen more than a 2,000% increase in users since 2015.
Here are the 10 fastest-growing apps in the US:
Venmo, an app for quickly sending and receiving money, grew 441% since June 2015.
Musical.ly, a video-based social-media platform, grew 630% from August 2015 to June 2016.
The ride-hailing app Lyft grew 282% since June 2015.
OfferUp, an app for buying and selling your stuff, grew 166% since June 2015.
Bitmoji, a Snap-owned app for creating personalized cartoon avatars, grew 2,078% since June 2015.
Letgo, an app for buying and selling your stuff, grew 1,224% since June 2015.
Wish, a shopping app that gives you discounts, grew 171% since June 2015.
The ride-hailing app grew 99% since June 2015.
The messaging app WhatsApp grew 91% since June 2015.
Waze, a Google-owned navigation app, grew 127% since June 2015.