This is the best summary I could come up with:

On mobile devices in the U.S., performance had also declined 17.8% year-over-year, based on monthly active users on iOS and Android.

The firm’s estimates are determined by machine learning algorithms powered by millions of websites and apps’ first-party analytics, including through its own consumer products that measure device traffic data as well as through partnerships with other companies, including ISPs, other measurement firms, and demand-side platforms.

The report also indicates that X’s declines are part of a broader shift, as web traffic to the top 100 social networks and online communities the firm tracks were also down by 3.7% in September, save TikTok, which grew 22.8% on a global basis.

On mobile, the same trend was true, but X’s monthly active users declined by 17.8% in September, compared with Facebook and Instagram, down by 8% and 3.7%, respectively.

In addition, Similarweb’s analysis touches on the declining importance of X in the news ecosystem, noting that three years ago, The New York Times would receive 3-4% of its traffic from Twitter, but that’s now down to less than 1%.

Yaccarino also shared other figures at an event in October, noting that people are spending 14% more time on X, with a 20% increase in consuming video and that 1.5 million sign up for X daily, up 4% year-over-year.

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