No. 3: Duolingo
If you’re a Duolingo user, you might have been subject to the constant notifications from the app to keep up your week-long learning streak. The company, which has 1.7 million followers on TikTok, has leaned into the joke that its owl mascot, Duo, can heavily “guilt-trip” users into finishing their lessons, causing the legal team to intervene. (Even the Duolingo lawyer, aka Legal Steve, has a TikTok.) The brand’s TikTok revolves around Duo participating in the latest trends, including this one in reference to Taylor Swift’s new album.