The era of mobile apps is over and Facebook — with a touch of Snapchat — won. 

The following chart, which comes to us from Anthony DiClemente at
Nomura, shows how Facebook absolutely dominates the mobile app space,
owning four of the top five most downloaded apps in May with only
Snapchat breaking up its stranglehold on the space.

Only Uber and Snapchat saw year-on-year download growth in the US during May.  “In our view, this highlights the growing maturation of the
internet’s largest mobile platforms’ user bases, particularly in
developed markets,” DiClemente said. Snapchat, however, is still seeing
accelerating download trends.