Slack is 100% cheaper
than Flock
$0/mo (Free) vs Flock PRO at $45/mo for 10 seats ($4.50/seat) — covering 100% of the 7 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; 1 of them covers at least 75% of the 7 compared capabilities. The cheapest option that covers everything we compared is Slack at $0/mo (Free plan), 100% less.
Capability comparison
Slack covers 100% of the 7 capabilities compared against Flock. ✓ native · ◐ via integration · ✗ not found.
| Capability | Slack | Flock |
|---|---|---|
| Channels & group messaging | ✓ | ✓ |
| Unlimited message history | ✓ | ✓ |
| Audio/video calls & screen sharing | ✓ | ✓ |
| Guest & external collaboration | ✓ | ✓ |
| App integrations | ✓ | ✓ |
| Workflow automation | ✓ | ✓ |
| Compliance exports & audit logs | ✓ | ✓ |
Price at your volume
The same comparison recomputed at three sizes. Plan caps change who is cheapest.
| Scenario | Flock | Slack |
|---|---|---|
| 3 seats | $13.50/mo | $0/mo (Free) |
| 10 seats | $45/mo | $0/mo (Free) |
| 25 seats | $112.50/mo | $0/mo (Free) |
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?
Nothing among the 7 capabilities we compared.
When were these prices checked?
Flock: 2026-09-07; Slack: 2026-08-26 — on the official pricing pages.
Sources & freshness
- https://flock.com/pricing (official_pricing, checked 2026-09-07)
- https://flock.com/pricing# (official_pricing, checked 2026-09-07)
- Slack data last verified 2026-08-26