As it happens, another non-chat app is joining this list. On Tuesday, Zillow—yes, Zillow — announced its app will also now support messaging. Starting today, you can send people messages in the app ...

Preteens yearn for independence — and many parents want to loosen the reins — but that requires giving them some way to check in and say, “I made it to school,” or “I’m going to Frannie’s house this ...