The Facebook Home interface for Android phone was downloaded half a million times in the first two weeks of its launch, according to new data.
Watch this presentation video from Mark Zuckerberg (courtesy of the Daily Telegraph explaining how Home works.)
Technology writer Benedict Evans posted the findings on Twitter, after noticing
Facebook Home passed 500,000 downloads from the Google Play store on Sunday.
He noted the app had gone from the "100k-500k" downloads category to "500k-1,000k". However, Facebook is yet to announce the number of downloads.
Despite sounding like quite an accomplishment, this is equal to just 0.05% of Facebook's user base.
The free app replaces the phone's home screen with a Facebook feed and chat options.
Facebook Home has so far received mixed reviews from users, with an average rating of 2.2 out of five stars.
Some of the 11,000 reviews left for the app on Google Play mention issues with battery life and there are complaints that once Facebook Home is installed, widgets - which can be used on Android phones to customise other applications - no longer work.
Just over half of those rating the app gave it just one star, while about 1,800 gave it a top score of five stars.