TikTok is the trendy teen app of the year—but it’s not too big to fail. 

TikTok is the trendy teen app of the year—but it’s not too big to fail. The short video app racked up one billion global downloads in its first year, beating Facebook and Instagram for 2018. However, even as more brands eye the app that’s captured teens’ attention, it could share a fate with Vine if it can’t: retain users (many new sign-ups ditch the app), get in global regulators’ good graces, find a way for influencers to directly monetize, and innovate on their original product (like how Snapchat came out with Stories). (The Verge)