It appeared to much exhibition as an opponent to Elon Musk's X, previously Twitter.
However, it was not made accessible in the EU, which has severe guidelines around information and huge tech.
Meta will trust it will drive interest in the stage, which acquired than 100 million clients in its most memorable week before those numbers floated down.
Manager Imprint Zuckerberg reported the news with a post on Threads, inviting new clients from across Europe.
A Meta representative said the stage had gone through "critical upgrades" since its send off in different nations in July.
An absence of key highlights, for example, a site and search capability, had added to introductory client interest blurring.
"Beginning today, individuals in the EU can decide to make a Threads profile that is associated with their Instagram account - and that implies they get a similar encounter as every other person all over the planet - or use Threads without a profile," they said.
Only three weeks after its send off, Mr Zuckerberg said Threads had lost portion of its clients.
The arrival of new highlights has assisted it with ripping at the vast majority of them back - however Threads stays less famous than X, and has numerous less clients than TikTok, or other Meta administrations Instagram and Facebook.
EU delay
Meta has not formally unveiled why it postponed Threads' send off in the EU, however it is believed to be a result of the coalition's severe guidelines.
A Meta representative told The Edge in July it was down to "impending administrative vulnerability".
The EU's Computerized Administrations Act - regulations which force new liabilities on huge tech organizations - came into force in August.
They are intended to safeguard clients on enormous social stages, and remember rules for promoting to kids and a necessity for firms to be more straightforward about their calculations with controllers.
Threads requests that consent access loads of information on your gadget, including area information, buys and perusing history.
It isn't at present known whether the application has gone through tremendous changes to maintain the EU's regulations.
Nonetheless, in October Meta reported membership administrations would be brought into the majority of Europe that would eliminate adverts from every one of its foundation, which it said would address EU concerns.
It came after Meta was fined €390m (£335m) in January for defying EU information norms around promotions.
The membership model is selective to individuals in the EU, European Monetary Region and Switzerland, and isn't accessible in the UK.
