TMTG remains shrouded in secrecy and is regarded with skepticism by some in tech and media circles. It remains unclear whether the app’s goal of freedom of expression can co-exist with Apple’s and Google’s app store policies. TMTG was not immediately available to comment.

Liz Willis, a correspondent and vice president of operations at Right Side Broadcasting Network, told Reuters she received an email Tuesday stating that “T Media Tech LLC has invited you to test Truth Social.”

Willis was able to download the app on her iPhone through the beta testing site TestFlight, the Apple-owned product that developers use prior to launching their apps in the App Store. Users have been posting on this version of Truth Social for the past 24 hours, Willis said Wednesday morning.