Duo Security vs SentinelOne: Pricing Comparison 2026
Side-by-side pricing comparison of Duo Security and SentinelOne. See all plans, features, and costs at a glance.
Bottom line: Duo Security starts at $3/mo and SentinelOne starts at Custom pricing. Compare all 7 pricing tiers side by side.
Last updated: March 16, 2026
Duo Security vs SentinelOne: Quick Pricing Facts
| Feature | Duo Security | SentinelOne |
|---|---|---|
| Starting Price | $3/mo | Custom pricing |
| Number of Plans | 4 | 3 |
| Free Tier | Yes | No |
| Pricing Model | per-seat | per-seat |
| Annual Discount | N/A | N/A |
Duo Security and SentinelOne are both priced at $3/mo, making them equally accessible Security tools. Together they offer 7 pricing plans with 27 features compared, so the best choice comes down to which features match your needs.
Duo Security stands out with a free plan for getting started.
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 Security needs.
| Pricing Plans |  Duo Security Try it free |  SentinelOne Try it free |
|---|---|---|
| Tier 1 | Duo FreePopular $0/monthCheapest Includes
| |
| Tier 2 | Duo EssentialsPopular $3/monthCheapest Includes
| Singularity ControlPopular Custom pricing Includes
|
| Tier 3 | Duo AdvantagePopular $6/monthCheapest Includes
| Singularity Complete Custom pricing Includes
|
| Tier 4 | Duo PremierPopular $9/monthCheapest Includes
| — |
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Duo Security
Duo Security offers a free plan, offers 4 tiers vs 3.
Based on pricing data only. Review the full comparison below for your specific needs.
Best value: Duo Security
Try Duo Security freeWhich Should You Choose?
Choose Duo Security if:
- •You need a free plan with Add up to 10 users, Strong MFA—Duo Security offers no-cost access with no credit card required
- •You need 4 pricing tiers for flexible team sizing—more options mean less overpaying for features you don't need
- •You want more features built-in—Duo Security offers 9 additional features across its plans
Choose SentinelOne if:
- •Your team needs custom enterprise pricing—SentinelOne offers negotiated terms for large deployments
- •You prioritize SentinelOne's user experience and interface over price (both tools are similarly priced)
- •SentinelOne's per-seat pricing lets you match exact team size without tier gaps
Duo Security offers a free plan [1], eliminating the cost barrier for evaluation, while SentinelOne requires paid subscription from the start. This gives Duo Security a significant advantage for teams with budget constraints or extended trial periods. Once you outgrow Duo Security's free tier, upgrading to a paid plan at approximately Free provides substantial additional functionality. Compare this pricing path against SentinelOne's tiering starting at Custom pricing to assess total cost of ownership over 12 months. Duo Security's 4 tiers provide flexibility at different budgets, while SentinelOne's 3 tiers structure may force you into higher-cost plans than necessary for your use case. If evaluation cost matters to your decision, Duo Security is the obvious starting point with zero financial commitment. Use the free tier to validate core functionality before committing to paid plans from either tool.
Frequently Asked Questions: Duo Security vs SentinelOne
How many pricing plans does Duo Security have vs SentinelOne?
Does Duo Security or SentinelOne offer a free plan?
What is the most popular Duo Security plan?
What is the most popular SentinelOne plan?
Does Duo Security or SentinelOne offer custom enterprise pricing?
How do Duo Security and SentinelOne compare for Security?
Sources
- Duo Security Official Pricing— Vendor pricing page
- SentinelOne Official Pricing— Vendor pricing page
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