Otter.ai vs Slack: Pricing Comparison 2026
Side-by-side pricing comparison of Otter.ai and Slack. See all plans, features, and costs at a glance.
Bottom line: Slack starts at $8.75/mo, making it $8/mo cheaper than Otter.ai ($16.99/mo). Slack offers a free plan.
Last updated: March 16, 2026
Otter.ai vs Slack: Quick Pricing Facts
| Feature | Otter.ai | Slack |
|---|---|---|
| Starting Price | $16.99/mo | $8.75/mo |
| Number of Plans | 4 | 4 |
| Free Tier | No | Yes |
| Pricing Model | freemium | per-seat |
| Annual Discount | N/A | N/A |
Slack is the more affordable option, starting at $8.75/mo compared to Otter.ai's $16.99/mo. Both are Communication tools with 8 combined pricing plans and 60 features compared.
Slack stands out with a free plan for getting started. Otter.ai uses freemium pricing while Slack uses per-seat pricing, which may affect your total cost at scale.
Review the detailed tier-by-tier comparison above to see exactly which features are included at each price point and find the best fit for your Communication needs.
| Pricing Plans |  Otter.ai Try it free |  Slack Try it free |
|---|---|---|
| Tier 1 | Basic Custom pricing | Free $0/monthCheapest Includes
|
| Tier 2 | Pro $17/month | Pro $9/monthCheapest Includes
|
| Tier 3 | Business $3024/month | Business+Popular $18/monthCheapest Includes
|
| Tier 4 | Enterprise Custom pricing | Enterprise+ Custom pricing Includes
|
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What Reviewers Say
Slack
Slack offers a free plan, starts at $8.239999999999998/mo lower ($8.75/mo vs $16.99/mo).
Based on pricing data only. Review the full comparison below for your specific needs.
Best value: Slack
Try Slack freeWhich Should You Choose?
Choose Otter.ai if:
- •You prefer Otter.ai's freemium model with its 4-tier structure
- •Otter.ai keeps its feature set lean, which means faster onboarding and less complexity
- •You need a Communication tool that scales with your team — Otter.ai's tier progression supports that
Choose Slack if:
- •You want lower per-user costs—Slack starts at $8.75/mo, saving $8.239999999999998/mo compared to Otter.ai at $16.99/mo
- •You need a free plan with 90 days of message history, Up to 10 apps—Slack offers no-cost access with no credit card required
- •You want more features built-in—Slack offers 60 additional features across its plans
Slack is the more affordable choice [1], starting at $8.75/mo compared to Otter.ai's $16.99/mo. For a 50-person team on paid plans, this translates to Slack saving approximately $412/month. Slack offers 4 pricing tiers compared to Otter.ai's 4, giving you more granular control over scaling costs as your team grows. Across all tiers, Slack provides 60 total features versus 0 for Otter.ai, offering a richer feature set depending on your specific needs. If controlling SaaS spend is a priority, Slack offers the better cost-to-value ratio. Consider Otter.ai only if its unique capabilities directly address a gap Slack cannot fill.
Frequently Asked Questions: Otter.ai vs Slack
Which is cheaper, Otter.ai or Slack?
How many pricing plans does Otter.ai have vs Slack?
Does Otter.ai or Slack offer a free plan?
What is the most popular Slack plan?
Does Otter.ai or Slack offer custom enterprise pricing?
What pricing models do Otter.ai and Slack use?
How do Otter.ai and Slack compare for Communication?
Sources
- Otter.ai Official Pricing— Vendor pricing page
- Slack Official Pricing— Vendor pricing page
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