They still serve some interesting purposes, actually. Here’s one:
Now, before you roll your eyes — “These youngsters today! Why do they need so many different ways to talk!?” — consider all the ways these apps improve on existing modes of chat.
Way 1: If you’re driving, walkie-talkie communication is far safer than texting. You never have to look at the phone. The Talk button is generally gigantic. It’s like trying to hit a barn door with a softball.