Twitter launched Fleets just eight months ago after testing the product in a handful of markets. The feature, which appeared prominently at the top of the app, let people share posts that disappeared after 24 hours, a format invented by Snap and later copied and further popularized by Facebook’s stable of apps, including Instagram. 

But Twitter said Wednesday in a blog post that while it hoped the ephemeral nature of Fleets would encourage more people to post, it was used primarily by people who were already tweeting. 

“We hoped Fleets would help more people feel comfortable joining the conversation on Twitter,” the company wrote. “But, in the time since we introduced Fleets to everyone, we haven’t seen an increase in the number of new people joining the conversation with Fleets like we hoped.”

Disappearing stories have been a popular product for other social media companies, primarily Instagram and Snapchat, where most posts are photos or videos. Tweets, meanwhile, are dominated by text. Twitter said it’s looking at building more features into the app’s camera to encourage people to share photos and videos more often. 

While Twitter tested running ads in Fleets, the product didn’t drive any meaningful revenue. Fleets will officially shut down on Aug. 3, the San Francisco-based company said.