Slack is 100% cheaper
than Flock
$0/mo (Free) vs Flock PRO at $45/mo for 10 seats ($4.50/seat) — covering 67% of the 6 compared capabilities.
Same job. Way less money.
Comparison scenario
Every cheaper-than claim is tied to a defined scenario — never a bare list price.
10 seats, monthly billing · USD · prices as observed on official pricing pages.
PRO plan at $45/mo ($4.50/seat × 10 seats), the cheapest paid plan.
Free: 0 USD/monthly.
Flock costs $45/mo on the PRO plan at 10 seats, monthly billing. We found 1 assessed alternative that is cheaper in this scenario; 0 of them cover at least 75% of the 6 compared capabilities.
Capability comparison
Slack covers 67% of the 6 capabilities compared against Flock. ✓ native · ◐ via integration · ✗ not found.
| Capability | Slack | Flock |
|---|---|---|
| Channels & group messaging | ✓ | ✓ |
| Unlimited message history | ↑ Pro | ✓ |
| Audio/video calls & screen sharing | ✓ | ✓ |
| Guest & external collaboration | ✓ | ✓ |
| App integrations | ✓ | ✓ |
| Workflow automation | ↑ Pro | ✓ |
What you give up
Capabilities Flock has that Slack lacks.
- Unlimited message history — Search and access message history without a retention limit.Missing from Slack.
- Workflow automation — Automate routine steps directly within chat.Missing from Slack.
Price at your volume
The same comparison recomputed at three sizes. Plan caps change who is cheapest.
| Usage | Flock | Slack |
|---|---|---|
| 3 seats | $13.50/moPRO | $0/mocheaperFree |
| 10 seats | $45/moPRO | $0/mocheaperFree |
| 25 seats | $112.50/moPRO | $0/mocheaperFree |
Plans & pricing, side by side
Advertised prices in USD as observed on the official pricing pages — per-seat and transaction-fee plans are marked.
| Free | Free |
| Pro | $8.75/seat/mo |
| Business+ | $18/seat/mo |
| Enterprise+ | Contact sales |
| Starter | Free |
| PRO | $4.50/seat/mo |
| Enterprise | Contact sales |
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Frequently asked
How much cheaper is Slack than Flock?
100% cheaper in our scenario (10 seats, monthly billing): $0/mo on Free vs $45/mo on PRO. That is $540 a year.
What does Slack lack compared with Flock?
Unlimited message history, Workflow automation — 2 of the 6 compared capabilities.
When were these prices checked?
Flock: 2026-10-26; Slack: 2026-10-26 — on the official pricing pages.
Who switched
Anonymous: no account, no email, no IP stored. Reports are shown once a switch has 3 or more and never change ranking or order — alternatives are computed from prices and capabilities only.
Sources & freshness
- https://flock.com/pricing (official_pricing, checked 2026-10-26)
- https://flock.com/pricing# (official_pricing, checked 2026-10-26)
- Slack data last verified 2026-10-26