Meta’s Threads app is coming back down to Earth after a blockbuster first week that saw the app become the fastest growing of all time. New data from analytics firm SimilarWeb suggests that the app’s engagement has since declined from initial highs despite its status as the fastest-growing app of all time.

Threads saw daily active users decline from 49 million on July 7th, to 23.6 million on July 14th, SimilarWeb writes in a new report. And in the United States, which reportedly saw the highest engagement, usage declined from 21 minutes per day to just over six minutes in the same time period.