Yes. But slack, like HipChat thinks I want to pay 500MB RAM and $7 per user per month to chat and voice call.

Effectively all I want is a lean chat/voice app that’s also ideally free. This is pretty easy - but when you throw in the other Skype features (group voice, screen sharing, mobile apps) as requirements, it’s actually pretty hard to match in the free tier.

Skype is $0 regardless of company size and the resource use is pretty reasonable.

On that topic: Why aren’t more companies using discord instead of Slack? Looking at feature matrices it seems discord does in the free version a lot of what Slack does in paid (e.g group voice)?