Mattermost vs Pumble: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Mattermost and Pumble side by side. This page compares data; it is not a hands-on review.
On the data: On the data below, Pumble leads on higher user rating and lower entry price. We do not name an overall winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Mattermost
Open-source team collaboration platform
Best for you if:
- • You want open source Slack alternative
Pumble
Free team chat for budget-conscious organizations
Best for you if:
- • You want free Slack alternative
| At a Glance | Mattermost | Pumble |
|---|---|---|
Starts at | Free plan, paid from $10/user/mo, billed monthly Professional plan | Free plan, paid from $2.49/user/mo, billed monthly Pro plan |
Category | Communication Team Chat | Communication Team Chat |
Rating | 4.3/5 G2 4.3 · Capterra 4.4 · SourceForge 4.3 604 reviews | 4.7/5 Capterra 4.7 · SourceForge 4.9 · G2 4.5 374 reviews |
Free plan | Yes | Yes |
Watch out for | n/a | Guest access only in Pro tier, could add up for large teams. |
Choose Mattermost or Pumble?
Choose Mattermost if
- You want open source Slack alternative
- You want self-hostable
Choose Pumble if
- You want free Slack alternative
- You want unlimited message history free
- Budget matters ($2.49/user/mo, billed monthly vs $10/user/mo, billed monthly)
In-Depth Analysis
Mattermost
Open-source team collaboration platform
Mattermost's pricing is fair, offering a generous Free tier for small teams.
Strengths
- Pro: Open source Slack alternative
- Pro: Self-hostable
- Pro: Good for compliance
- Pro: No per-user cloud cost
- Pro: Customizable
Weaknesses
- Con: Less polished than Slack
- Con: Smaller integration library
- Con: Self-hosting required for best value
- Con: Learning curve
- Con: Community smaller
Key features
Pumble
Free team chat for budget-conscious organizations
Pumble's pricing is incredibly generous, especially with its robust Free tier offering unlimited users and history.
Watch out
Guest access only in Pro tier, could add up for large teams.
Strengths
- Pro: Free Slack alternative
- Pro: Unlimited message history free
- Pro: Screen sharing
- Pro: Good basic features
- Pro: Fair pricing
Weaknesses
- Con: Less polished than Slack
- Con: Limited integrations
- Con: Newer platform
- Con: Smaller community
- Con: Some features basic
Key features
Plans and prices: Mattermost vs Pumble
| Tool | Plans and prices | Source |
|---|---|---|
| Mattermost |
| mattermost.com/pricing read Sep 30, 2026 |
| Pumble |
| pumble.com/pricing read Oct 14, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Mattermost pricing and Pumble pricing.
Key Takeaways
Mattermost
- Choose if you want open-source team collaboration platform
Pumble
- Higher user rating: 4.7/5 vs 4.3/5
- Lower entry price: $2.49/user/mo, billed monthly vs $10/user/mo, billed monthly
What the data shows
On the data below, Pumble leads on higher user rating and lower entry price. We do not name an overall winner for this pair.
- Pumble has the higher user rating (4.3/5 from 604 reviews for Mattermost, 4.7/5 from 374 reviews for Pumble).
- Pumble has the lower entry price: $2.49/user/mo, billed monthly (Pro) against $10/user/mo, billed monthly (Professional) for Mattermost.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Mattermost and Pumble compare in 2026?
On the data below, Pumble leads on higher user rating and lower entry price. We do not name an overall winner for this pair. Pumble has the higher user rating (4.3/5 from 604 reviews for Mattermost, 4.7/5 from 374 reviews for Pumble). Pumble has the lower entry price: $2.49/user/mo, billed monthly (Pro) against $10/user/mo, billed monthly (Professional) for Mattermost. Both have a free plan.
What are Mattermost and Pumble used for?
Mattermost: Open-source team collaboration platform. Pumble: Free team chat for budget-conscious organizations.
What does Mattermost cost vs Pumble?
Mattermost's cheapest paid plan is Professional at $10/user/mo, billed monthly; it also has a free plan. Pumble's cheapest paid plan is Pro at $2.49/user/mo, billed monthly; it also has a free plan. Prices read on the vendors' pricing pages, latest check Oct 14, 2026.
What's the main difference between Mattermost and Pumble?
Mattermost's main strength: open source Slack alternative. Pumble's main strength: free Slack alternative.