Clerk vs Datadog: Pricing Comparison (2026)
Clerk starts at $25/mo. Datadog starts at $18/mo. Datadog is $7/mo cheaper on the entry tier than Clerk.
Modern authentication platform positioned as the alternative to Auth0 for React and Next.js developers. Distinctive for pre-built UI components (SignIn/SignUp forms) that install in one line — you don't build auth UI from scratch. Free tier bumped to 50K MAU in Feb 2026 (industry-leading). Pro $25/mo includes 1 SSO connection (WorkOS charges $125/mo for the same). Business $300/mo. Popular with Series A/B React startups.
The dominant cloud observability platform (metrics, logs, traces, APM), publicly traded (DDOG), ~$45B market cap. Positioned as the alternative to New Relic + Splunk + PagerDuty stitched together. Distinctive for its notorious usage-based pricing that has surprised engineering teams with 6-figure monthly bills (Coinbase's leaked contract was ~$65M/year in 2022). Priced by seat + host + volume across 20+ meters. Popular with engineering teams; feared by finance teams.
All plans compared
| # | Plan | Clerk monthly | Clerk annual | Datadog monthly | Datadog annual |
|---|---|---|---|---|---|
| 1 | Free | 0 | 0 | 0 | 0 |
| 2 | Pro / Infrastructure Pro | 25 | 25 | 18 | 15 |
| 3 | Business / Infrastructure Enterprise | 300 | 300 | 27 | 23 |
| 4 | Enterprise | custom | custom | — | — |
What each is best for
Modern authentication platform positioned as the alternative to Auth0 for React and Next.js developers. Distinctive for pre-built UI components (SignIn/SignUp forms) that install in one line — you don't build auth UI from scratch. Free tier bumped to 50K MAU in Feb 2026 (industry-leading). Pro $25/mo includes 1 SSO connection (WorkOS charges $125/mo for the same). Business $300/mo. Popular with Series A/B React startups.
The dominant cloud observability platform (metrics, logs, traces, APM), publicly traded (DDOG), ~$45B market cap. Positioned as the alternative to New Relic + Splunk + PagerDuty stitched together. Distinctive for its notorious usage-based pricing that has surprised engineering teams with 6-figure monthly bills (Coinbase's leaked contract was ~$65M/year in 2022). Priced by seat + host + volume across 20+ meters. Popular with engineering teams; feared by finance teams.
At a glance
| Clerk | Datadog | |
|---|---|---|
| Free plan | Yes | Yes |
| Entry price | $25/mo | $18/mo |
| Enterprise available | Yes | Yes |
| Pricing model | — | Per Usage |
| Last verified | July 25, 2026 | July 24, 2026 |
| Full pricing | View full pricing | View full pricing |
Pricing last verified July 25, 2026. Tracked daily.