TikTok launches music distribution platform SoundOn in the US, UK, Brazil, and Indonesia; artists can upload music directly to TikTok, Resso, Spotify, and more (Sarah Perez/TechCrunch)

Substack launches an iOS app for reading; Android users can join a waitlist — What you read matters — Today, we’re launching an iOS app for reading. It’s like your email inbox, but better. — For readers, the app brings all your Substack subscriptions together in one venue …