Monthly active users of the leading eTrading apps in the U.S. 2017-2021

Based on monthly active users, Robinhood is by far the most popular eTrading app in the United States. As of July 2021, there were over 7.3 million Robinhood users - more than three times the users of second-placed WeBull. User numbers spiked in early 2021, reaching a peak of over nine million in May 2021. The timing of this spike in popularity is likely influenced by the media attention paid to retail investors, generally using eTrading apps, coordinating their activity via social media to drive up the stock price of companies such as GameStop and AMC Entertainment.