| N/A | Slack is a group messaging or team collaboration app that aims to simplify communication for businesses. Features include open discussions, private groups, and direct messaging, as well as deep contextual search and message archiving, and file sharing. Slack integrates with a number of other tools, such as MailChimp, Dropbox, and Google Drive. Slack was acquired by Salesforce in December 2020.
The product is free to use, and also has paid plans with more features and greater controls.
The… | $8.75 per month per user |
| N/A | Zulip is a team chat app that is designed for both live and asynchronous conversations. Zulip topics create a separate space for each discussion, so different conversations will never get in each other's way. Teams of all sizes can use Zulip, and Zulip is 100% open-source enterprise-grade software, self-hosted or in the cloud. | $3.50 per month per user |