The Chinese social media platform Xiaohongshu, also referred to as RedNote in English, has sprung to supremacy as the top free app on iPhone as the ban on TikTok took effect Sunday, drawing the ire of U.

Shanghai-based Xiaohongshu, or RedNote as it is known in English, is a Chinese social media platform growing in popularity as an alternative to TikTok, but with the same security risks.

With a TikTok ban set to go into effect in the U.S. on Sunday, social media users in the U.S. are migrating to Xiaohongshu, also known as ‘REDnote.’