Datadog vs Merge — Pricing, Plans, and Verified Costs (2026)
Datadog starts at $18/mo. Merge starts at $650/mo. Datadog is $632/mo cheaper on the entry tier than Merge.
How pricing works
These two tools don't price the same way, so the headline numbers below aren't directly comparable until you plug in your own volume.
- Datadog (Per Usage) — Datadog bills on usage — host on top of a paid plan starting at $18/mo. The plan includes an allowance; anything beyond it is metered.
- Merge (Unknown model) — Merge bills on a fixed plan from $650/mo, so the listed price is what you pay regardless of volume.
Per-minute, per-credit and per-token rates exclude any downstream model, speech or telephony costs unless the vendor states otherwise.
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.
Unified API platform for B2B SaaS. Positioned as the alternative to building N integrations per category (HRIS, ATS, CRM, accounting). Distinctive: one API call reaches 200+ tools — you code once, your customers connect to whatever they use. Free for first 3 production Linked Accounts. Paid starts at $650/mo for up to 10 accounts, then $65 per additional — mandatory annual contracts. Popular with vertical SaaS whose customers span many operational tools.
All plans compared
| Tier role | Plan | Datadog monthly | Datadog annual | Merge monthly | Merge annual |
|---|---|---|---|---|---|
| Free / starter | Free | Free | Free | Free | Free |
| Entry paid | Infrastructure Pro / Launch | $18 | $15 | $650 | $650 |
| Enterprise | Infrastructure Enterprise / Enterprise | $27 | $23 | Custom | Custom |
Tier names differ across vendors. Rows are aligned by tier role, not name. Full tier structures on each tool's page.
What each is best for
Datadog is worth it if… infrastructure teams (10+ engineers) that need APM + logs + metrics + synthetics + RUM in one platform — the observability default at mid-market and enterprise scale. Infrastructure covers hosts; APM, Logs, RUM, Synthetics, Database Monitoring each priced separately per module.
Merge is worth it if… B2B SaaS companies (Series A-Series D) that need to build integrations with dozens of HR, ATS, ticketing, or accounting platforms via a single unified API — rather than building each one individually. Launch is the entry paid tier; Professional adds more integration categories.
Bottom line: Similar positioning, closer to a preference call than a strategic one.
Choose Datadog over Merge if…
Choose Datadog if…
- You want to pay only for actual usage (per usage, from $18/mo).
- You match the profile Datadog is built for: infrastructure teams (10+ engineers) that need APM + logs + metrics + synthetics + RUM in one platform — the observability default at mid-market and enterprise scale.
- You need a general-purpose developer & infrastructure option rather than a vertical-specific one.
Choose Merge if…
- You're comfortable with Merge's from $650/mo entry point.
- You match the profile Merge is built for: B2B SaaS companies (Series A-Series D) that need to build integrations with dozens of HR, ATS, ticketing, or accounting platforms via a single unified API — rather than building each one individually.
- You need a general-purpose developer & infrastructure option rather than a vertical-specific one.
At a glance
| Datadog | Merge | |
|---|---|---|
| Free plan | Yes | Yes |
| Entry price | $18/mo | $650/mo |
| Enterprise available | Yes | Yes |
| Pricing model | Per Usage | — |
| Verification | Pricing under review | Pricing under review |
| Full pricing | View full pricing | View full pricing |
Pricing last verified September 26, 2026. Tracked daily.