Earlier this year, Netflix launched a TikTok-like “Fast Laughs” feature in its app, offering short-form funny videos that would introduce members to its comedy programs, stand-up specials and more.

Zigazoo, the startup known for its TikTok-style video-sharing app for kids, is launching a separate app targeted at Gen Z users. The new app will take the flagship name and is meant for ages 13 and ...