It was also the top free app in Apple's App Store as of Thursday morning.
It's built on top of Instagram and is automatically linked to a user's account on the photo-sharing app.
Initially, users could only access the service through a roundabout way in the Instagram app.
How to use ThreadsUsers are required to have an Instagram account in order to use Threads.
Zoom In Icon Arrows pointing outwardsThreads appear in a scrolling feed, where users can like, reply, repost or quote other users' threads.
Persons:
Emin Sansar, Mark Zuckerberg, Elon Musk, Jack Dorsey, It's
Organizations:
Anadolu Agency, Getty, Twitter