Slack sits in the Communication category. Most SMB accounts overpay by 40% to 70% on this one tool alone. Here's the realistic price, the common overspend traps, and the cheaper alternatives we recommend at Cancel Costs.
Slack Pro is A$10/seat/mo but message history was the only real gate removed from free. Most teams under 50 people could run on the free plan with 90-day history. Slack Connect (paid external channels) often duplicates work already in email.
slack-edge.com asset URLs, api.slack.com webhooks, xoxb- tokens in source, Slack Bolt SDK imports
| Alternative | Monthly (A$) | Why it works |
|---|---|---|
| Discord (free) | A$0 | Free forever for unlimited history, works for most teams |
| Google Chat | A$0 | Included with Google Workspace; no extra seat cost |
| Mattermost (self-hosted) | A$0 | Open source Slack alternative, full message history |
Slack discounts 25% to 40% on annual contracts and will negotiate on seat count if you provide a roster of inactive users. Use Vendor Letter Pack Letter 7 (consolidating, justify your cost) and audit the member list first.
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