Mimecast vs Datadog: Which is Better in 2026?
Choosing between Mimecast and Datadog comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: Datadog wins this matchup. 1Password is our overall Security pick. LastPass is our free Security pick. Pick Mimecast if you need security.
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:
Mimecast
AI-powered human risk management and advanced email security for modern organizations.
Best for you if:
- • You want unified platform for email security, human risk, and insider risk management
Datadog
Cloud monitoring, security, and AI investigations for DevOps
Best for you if:
- • You want a free tier before you commit
| At a Glance | Mimecast | Datadog |
|---|---|---|
Starts at | Custom | Free Free plan |
Category | Security Email | Monitoring Log Management |
Rating | 4.4/5 G2 4.4 · Capterra 4.3 440 reviews | 4.4/5 G2 4.4 726 reviews |
Free plan | No | Yes |
Watch out for | n/a | APM requires Infrastructure Monitoring on the SAME hosts: you cannot buy APM alone. Most pricing pages only show the APM price |
Choose Mimecast or Datadog?
Choose Mimecast if
- You want unified platform for email security, human risk, and insider risk management
- You want leverages advanced AI and decades of threat intelligence for superior protection
- You work in security, not monitoring
Choose Datadog if
- You want a free tier before you commit
- You want comprehensive platform
- You want great visualizations
- You work in monitoring, not security
In-Depth Analysis
Mimecast
AI-powered human risk management and advanced email security for modern organizations.
Strengths
- Pro: Unified platform for email security, human risk, and insider risk management.
- Pro: Leverages advanced AI and decades of threat intelligence for superior protection.
- Pro: Recognized as a leader in Gartner Magic Quadrants for Email Security and Digital Communications Governance.
- Pro: Offers rapid deployment and actionable insights for insider risk management without complex policy setup.
- Pro: Reduces shadow AI use and promotes secure adoption of AI tools.
Weaknesses
- Con: No free tier available for evaluation.
- Con: Requires integration with existing systems, which might have an initial setup phase.
Key features
Datadog
Cloud monitoring, security, and AI investigations for DevOps
Datadog is the most comprehensive observability platform, infrastructure monitoring, APM, logs, RUM, security, and 750+ integrations in one place.
Watch out
APM requires Infrastructure Monitoring on the SAME hosts: you cannot buy APM alone. Most pricing pages only show the APM price
Strengths
- Pro: Comprehensive platform
- Pro: Great visualizations
- Pro: 700+ integrations
Weaknesses
- Con: Complex pricing
- Con: Can be expensive
Key features
Pricing: Mimecast vs Datadog
| Plan | Mimecast | Datadog |
|---|---|---|
| Tier 1 | N/A | Free Free |
| Tier 2 | N/A | $15 /host/month (annual) Infrastructure Pro |
| Tier 3 | N/A | $23 /host/month (annual) Infrastructure Enterprise |
| Tier 4 | N/A | $31 /host/month (annual, with Infra) APM |
| Tier 5 | N/A | $40 /host/month (annual, with Infra) APM Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on Mimecast pricing and Datadog pricing.
Key Takeaways
Datadog
- Larger review base (726 reviews)
- Free tier available
- Our pick for this comparison
Mimecast
- Better fit for security
The Bottom Line
Datadog wins this matchup. 1Password is our overall Security pick. LastPass is our free Security pick.
Frequently Asked Questions
Is Mimecast or Datadog better in 2026?
Datadog wins this matchup. 1Password is our overall Security pick. LastPass is our free Security pick. Pick Mimecast for security workflows (main strength: unified platform for email security, human risk, and insider risk management). Pick Datadog for monitoring workflows (main strength: comprehensive platform).
What are Mimecast and Datadog used for?
Mimecast: AI-powered human risk management and advanced email security for modern organizations. Datadog: Cloud monitoring, security, and AI investigations for DevOps.
What does Mimecast cost vs Datadog?
Mimecast pricing is on their site. Datadog's paid plans start at Free (Infrastructure Pro).
What's the main difference between Mimecast and Datadog?
Mimecast's main strength: unified platform for email security, human risk, and insider risk management. Datadog's main strength: comprehensive platform.