Nagios XI vs Datadog Infrastructure Pricing (2026)
Compare / Nagios XI vs Datadog Infrastructure
Shortlist
Team size
25 seats

Nagios XI vs Datadog Infrastructure

Network Monitoring pricing comparison · 2026

Nagios XI pricing ranges from $0–$19995/month, while Datadog Infrastructure ranges from $0–$23/month. Datadog Infrastructure is typically 100% more affordable, though your actual cost depends on tier and team size.

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See pricing on each vendor's site
Above-the-fold path — each link opens the vendor's pricing page in a new tab.
Visit Nagios pricing
Free plan limits → Discount programs →
Visit Datadog pricing
Free plan limits → Discount programs →
Compare
2 products · Network Monitoring
Side-by-side · live
Nagios XI
Nagios XI offers a free tier for monitoring up to 7 nodes or 100 services, whichever limit
verified 7d ago
View pricing →
Datadog Infrastructure
Datadog Infrastructure monitoring pricing starts at $18/host/month for the Pro plan (or $1
verified 27d ago
View pricing →
Estimated license cost
at 25 seats
List price × seats. Click a tier below to lock it.
Pricing model unknown
Pricing model unknown
no public list price found
Pro
$5.4K/yr
year 1 license · $18/seat
What buyers actually pay
median, annual
Vendr deal-flow data. The real benchmark, not list price.
No Vendr data
—
Not in Vendr's deal flow
Median annual
$641/yr
Vendr · n=13
REF · 01

Sources & confidence

Every dollar amount and contract clause below traces back to a sourced fact. We don't manufacture composite scores.

Where this data comes from
Vendr · TrustRadius · Reddit · BBB · official docs
Sources 4 sourced facts
3 hidden-cost · 1 review platform
Last verified 1w ago
Confidence Medium confidence
Sources 13 sourced facts
9 hidden-cost · 3 contract · Vendr median
Last verified 3w ago
Confidence Medium confidence
REF · 02

Plans at a glance

Every tier per product. Lock one to drive the cost row above and reveal a tier-specific outbound CTA.

Tier ladder
Click a tier to lock the cost row to it. Locking surfaces a tier-specific Visit CTA.
REF · 03

Hidden costs

Each cost is severity-ranked, with the dollar range quoted from its source (Vendr, Reddit, TrustRadius, BBB, official docs) — never our estimate.

Beyond the sticker
Severity-ranked, sourced
2 documented
  • Linux Administrator Required for Master Node
    $50,000-$80,000
    1 source
  • Feature Restrictions in Standard Edition
    Varies by edition
    2 sources
5 documented
  • Custom Metrics Overage Charges
    $0.05/metric
    1 source
  • Unpredictable Billing from Multiple SKUs
    50-300% of expected costs
    3 sources
  • New Feature Pricing During Contract Term
    10-30% of contract value
    2 sources
  • Log Ingestion and Retention Costs
    $1.70/million log lines
    1 source
  • APM and Tracing Costs
    20-100% of infrastructure costs
    2 sources
REF · 05

What users say

Aggregated, with sample sizes. We use whichever review platform has data.

User reviews
TrustRadius · Trustpilot · G2
TrustRadius
8.6/5 (46)
Best for
General users
Watch out
Graphical user interface needs enhancement and looks clumsy
No public ratings yet
Best for
Small projects
Watch out
Extremely complex and unpredictable pricing across multiple SKUs
Decide
Get a quote from each vendor
Each link opens the vendor's pricing page in a new tab.
Visit Nagios pricing
Free plan limits → Discount programs →
Visit Datadog pricing
Free plan limits → Discount programs →
License cost is computed from publicly listed plans (real math, list price × seats). Median annual cost is from Vendr's deal flow when available — see source badges. Hidden costs and contract terms each cite their own sources. We do not invent composite scores.
Network Monitoring

Nagios XI

$0–$19995
/month
1 plan · Free tier
Full pricing breakdown →
VS
Network Monitoring

Datadog Infrastructure

$0–$23
/month
3 plans · Free tier
Full pricing breakdown →

Nagios XI and Datadog Infrastructure both operate in the network monitoring category. This page compares their list pricing.

Plan-by-Plan Pricing

Plan Nagios XI Datadog Infrastructure
Standard Free /month Free /month
Pro — $18 /month
Enterprise — Custom

Hidden Costs

Beyond the sticker price — what catches buyers off guard.

Nagios XI 2 hidden costs

medium
Linux Administrator Required for Master Node $50,000-$80,000
low
Feature Restrictions in Standard Edition Varies by edition
See all Nagios XI hidden costs →

Datadog Infrastructure 5 hidden costs

high
Custom Metrics Overage Charges $0.05/metric
critical
Unpredictable Billing from Multiple SKUs 50-300% of expected costs
medium
New Feature Pricing During Contract Term 10-30% of contract value
high
Log Ingestion and Retention Costs $1.70/million log lines
critical
APM and Tracing Costs 20-100% of infrastructure costs
See all Datadog Infrastructure hidden costs →

Continue researching

Nagios XI

Datadog Infrastructure

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