What are some alternatives?
When comparing Slack Beta and Microsoft Teams, you can also consider the following products
Slack - A messaging app for teams who see through the Earth!
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
Slack for Mac - A new, improved Slack desktop app for Mac
Creativity 365 - Cross-device content creation suite
Slack Video Messaging by Standuply - Easily record and send video messages in Slack 📹
SquidHub - SquidHub is a simple and intuitive productivity app for teams. Get the job done - for free! - Todo list, Messages, and File sharing