Flock is an alternative
to Mattermost
$0/mo (Starter) vs Mattermost at — — covering 56% of the 9 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.
plan at —, the cheapest paid plan.
Starter: 0 USD/monthly.
We list 1 assessed alternative; Mattermost's own price is not verified yet, so no cheaper-than claim is made.
Capability comparison
Flock covers 56% of the 9 capabilities compared against Mattermost. ✓ native · ◐ via integration · ✗ not found.
| Capability | Flock | Mattermost |
|---|---|---|
| Channels & group messaging | ✓ | ✓ |
| Threaded conversations | ✗ | ✓ |
| Guest & external collaboration | ✓ | ✓ |
| SAML single sign-on | ✗ | ✓ |
| Self-hosted deployment | ✗ | ✓ |
| Compliance exports & audit logs | ✓ | ✓ |
| AI search & summaries | ✗ | ✓ |
| App integrations | ✓ | ✓ |
| Workflow automation | ✓ | ✓ |
What you give up
Capabilities Mattermost has that Flock lacks.
- Threaded conversations — Reply within a thread instead of the main channel feed.Missing from Flock.
- SAML single sign-on — Sign in through your company's SAML single sign-on.Missing from Flock.
- Self-hosted deployment — Run the chat platform on your own infrastructure.Missing from Flock.
- AI search & summaries — Search and summarize conversations with an AI assistant.Missing from Flock.
Price at your volume
The same comparison recomputed at three sizes. Plan caps change who is cheapest.
| Scenario | Mattermost | Flock |
|---|---|---|
| 3 seats | — | $0/mo (Starter) |
| 10 seats | — | $0/mo (Starter) |
| 25 seats | — | $0/mo (Starter) |
Plans & pricing, side by side
Advertised prices in USD as observed on the official pricing pages — per-seat and transaction-fee plans are marked.
| Starter | Free |
| PRO | $4.50/seat/mo |
| Enterprise | Contact sales |
| Entry | Free |
| Professional | Contact sales |
| Enterprise | Contact sales |
| Enterprise Advanced | Contact sales |
Frequently asked
What does Flock lack compared with Mattermost?
Threaded conversations, SAML single sign-on, Self-hosted deployment, AI search & summaries — 4 of the 9 compared capabilities.
When were these prices checked?
Mattermost: 2026-09-07; Flock: 2026-09-07 — on the official pricing pages.
Sources & freshness
- https://mattermost.com/pricing/ (official_pricing, checked 2026-09-07)
- https://mattermost.com/pricing/#skip-nav-target (official_pricing, checked 2026-09-07)
- Flock data last verified 2026-09-07