I don’t think there’s a clear definition of either. I’d say if it has no UI, it’s a program. And if it has a UI, I don’t know if it’s a program or an app.

Completely missed my point.

Asynchronous communication means that I send you a message whenever I want and you respond whenever you want.

If I wanted to talk in the moment I would walk to your office or call you.

Messaging makes no sense if I have to remember every message I want to send and send them when the receiver is available. That’s not how it works.

It’s the receiver’s responsibility to read that message when they have to.

I believe this is the same people that will respond “not now, I’m in a meeting”. I know you’re in a meeting. It’s called asynchronous communication. I can message you whenever I want, and you can read and reply whenever you want. The messages won’t go away.

Or even worse “I have not arrived at the office yet”. Then don’t fucking read teams.

Engagement based personalized recommendations.