# Slack

> A distraction. Email and WhatsApp are enough.

- Verdict: Never
- Vendor: Salesforce
- Layer: [Business tools](https://cloudlesslabs.com/stack/layers/business.md)
- Last reviewed: 18 October 2026, by Nicolas Dao (Cloudless Labs, Sydney)
- Web page: https://cloudlesslabs.com/stack/slack/. The whole stack in one file: https://cloudlesslabs.com/stack/brief.md

I talk to clients by email and WhatsApp.

## Don't use it when

- Client communication. Email and WhatsApp are enough.

## Use instead

Email and WhatsApp for clients; notes and docs as Markdown in GitHub.

## Alternatives

- [GitHub](https://cloudlesslabs.com/stack/github/index.md): Notes and docs as Markdown.

## Where it fits

- [Running the business](https://cloudlesslabs.com/stack/use-cases/business.md): don't. A distraction: always-on chat fragments the day. Email and WhatsApp are enough for clients, and notes and docs live as Markdown in GitHub. Instead: [GitHub](https://cloudlesslabs.com/stack/github/index.md).

## Related

- [Business tools](https://cloudlesslabs.com/stack/layers/business.md): every tool in this layer, with its verdict
- [The whole stack in one file](https://cloudlesslabs.com/stack/brief.md): every use case and tool, for questions that span many
- [Map of every Markdown file on cloudlesslabs.com, with what each one answers](https://ask.cloudlesslabs.com)