US President Joe Biden has revoked and replaced executive orders targeting TikTok, WeChat and eight other software applications signed by his predecessor President Donald Trump.

"President Biden revoked and replaced three E.O.s (executive orders) that aimed to prohibit transactions with TikTok, WeChat, and eight other communications and financial technology software applications; two of these E.O.s are subject to litigation," the White House said in a fact sheet released on Wednesday. The new order signed by Biden on Wednesday directed the US Commerce Department to instead evaluate software applications connected with "foreign adversaries" under recent US supply-chain security rules "and take action, as appropriate", according to the White House.