Free LogicMonitor alternatives: 5 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rank

5 of the 6 LogicMonitor alternatives we track can be used for free (free, open source, or with a free plan). Datadog, New Relic and Paessler PRTG rank highest, with facts last verified Nov 8, 2026.

Quick comparison

#	App	Pricing	Verified price	Open source	Platforms	Verified facts	Score
1	Datadog	Free plan + paid	Infrastructure Pro, $15 per host/month billed annually	No	Web, iOS, Android	6 of 7	82.3
2	New Relic	Free plan + paid	$10 for the first full user, then $99 per user (Standard)	No	Web, iOS, Android	7 of 7	63.4
3	Paessler PRTG	Free plan + paid	$200 per month, billed annually (500 sensors)	No	Windows, Self-hosted, Web	5 of 5	61.8
4	Zabbix	Open source	—	Yes	Self-hosted, Linux, Web	4 of 4	59.4
5	Checkmk	Free plan + paid	From €190 a month, billed annually (Pro)	Yes	Self-hosted, Linux, Web	6 of 6	57.5

1. DatadogTop pick
Best for: Cloud-heavy teams that want metrics, traces, logs and alerts in one hosted product and can budget for it
Free plan + paidWeb, iOS, Android
82.3
score / 100
Why switch from LogicMonitor
Broader developer-focused observability with strong APM and tracing, priced per host and per product.
Pros
Very wide integration catalogue that works with little setup
Metrics, traces and logs are linked in one interface
Mature dashboards, monitors and on-call features
Cons
Per-product, per-host pricing makes bills hard to forecast
Custom metrics and log volume get expensive quickly
No self-hosted option
Visit Datadog Details and reviews
How this score is calculated
Editorial fit ×0.3100
Reviews ×0.363
Clicks (90 days) ×0.15100
Freshness ×0.1590
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Datadog a good LogicMonitor alternative?
Verified facts
6 of 7 verified
Starting price
Infrastructure Pro, $15 per host/month billed annually
Checked Nov 8, 2026datadoghq.com(opens source in a new tab)
Free tier
Up to 5 hosts, 1-day metric retention
Source changed Nov 8, 2026datadoghq.com(opens source in a new tab)
Free trial
14 days
Checked Nov 8, 2026datadoghq.com(opens source in a new tab)
Integrations
1,000+
Checked Nov 8, 2026datadoghq.com(opens source in a new tab)
Enterprise plan
$23 per host/month billed annually
Checked Nov 8, 2026datadoghq.com(opens source in a new tab)
APM plan
From $31 per host/month
Checked Nov 8, 2026datadoghq.com(opens source in a new tab)
Free plan
Yes, up to 5 hosts with 1-day metric retention
Checked Nov 8, 2026datadoghq.com(opens source in a new tab)
2. New Relic
Best for: Teams that want full-stack APM with predictable data-based pricing and a usable free tier
Free plan + paidWeb, iOS, Android
63.4
score / 100
Why switch from LogicMonitor
Usage-based observability with a generous free tier and stronger application performance monitoring.
Pros
Perpetual free tier with a meaningful monthly data allowance
One query language across all telemetry types
Wide language agent support plus OpenTelemetry ingest
Cons
Full-platform user seats are expensive on paid tiers
Interface has many overlapping views to learn
Hosted only
Visit New Relic Details and reviews
How this score is calculated
Editorial fit ×0.357
Reviews ×0.363
Clicks (90 days) ×0.1550
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is New Relic a good LogicMonitor alternative?
Verified facts
7 of 7 verified
Free tier
100 GB data ingest/month
Checked Nov 8, 2026newrelic.com(opens source in a new tab)
Data price
$0.40/GB beyond 100 GB free
Checked Nov 8, 2026newrelic.com(opens source in a new tab)
Free full user
1
Checked Nov 8, 2026newrelic.com(opens source in a new tab)
Basic users
Unlimited, free
Checked Nov 8, 2026newrelic.com(opens source in a new tab)
Starting price
$10 for the first full user, then $99 per user (Standard)
Checked Nov 8, 2026newrelic.com(opens source in a new tab)
Pro plan
$349 per full user/month, annual commitment
Checked Nov 8, 2026newrelic.com(opens source in a new tab)
Free plan
Yes, 100 GB data ingest/month and 1 full user
Checked Nov 8, 2026newrelic.com(opens source in a new tab)
3. Paessler PRTG
Best for: Small and mid-sized IT teams that want point-and-click network monitoring on a Windows server
Free plan + paidSelf-hostableWindows, Self-hosted, Web
61.8
score / 100
Why switch from LogicMonitor
Network and infrastructure monitoring you can run on-premises, licensed by sensor count.
Pros
Auto-discovery and many ready-made sensor types
Maps, dashboards and alerting without heavy scripting
Free edition for up to 100 sensors
Hosted and enterprise editions for larger setups
Cons
The core server runs only on Windows
Sensor-based licences get expensive as networks grow
Different licence sizes can't be combined on one server
Closed source, unlike Zabbix or Checkmk's open edition
Visit Paessler PRTG Details and reviews
How this score is calculated
Editorial fit ×0.377
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Paessler PRTG a good LogicMonitor alternative?
Verified facts
5 of 5 verified
Starting price
$200 per month, billed annually (500 sensors)
Checked Nov 8, 2026paessler.com(opens source in a new tab)
Free edition
Up to 100 sensors
Checked Nov 8, 2026paessler.com(opens source in a new tab)
Free trial
30 days, unlimited
Checked Nov 8, 2026paessler.com(opens source in a new tab)
Platform
Windows server (on-premises)
Checked Nov 8, 2026paessler.com(opens source in a new tab)
Owner
Paessler GmbH, Nuremberg
Checked Nov 8, 2026paessler.com(opens source in a new tab)
4. Zabbix
Best for: IT teams monitoring servers and network devices on-premises at scale without licence fees
Open sourceSelf-hostableSelf-hosted, Linux, Web
59.4
score / 100
Why switch from LogicMonitor
Free and open source, self-hosted, with deep network and server monitoring if you can run it yourself.
Pros
Free with no per-device licence fees
Huge template library for devices and services
Scales to large estates with proxies
Cons
Dense interface with a steep learning curve
Less suited to ephemeral containers
Self-hosting the database and server is on you
Visit Zabbix Details and reviews
How this score is calculated
Editorial fit ×0.369
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Zabbix a good LogicMonitor alternative?
Verified facts
4 of 4 verified
License
AGPL-3.0
Checked Oct 25, 2026github.com(opens source in a new tab)
Licence change
AGPLv3 from version 7.0
Checked Nov 8, 2026zabbix.com(opens source in a new tab)
Licence fees
None
Checked Nov 8, 2026zabbix.com(opens source in a new tab)
Hosted option
Zabbix Cloud
Checked Nov 8, 2026zabbix.com(opens source in a new tab)
5. Checkmk
Best for: IT teams with mixed server, network and cloud estates who want fast automatic setup
Free plan + paidOpen sourceSelf-hostableSelf-hosted, Linux, Web
57.5
score / 100
Why switch from LogicMonitor
Open-source core with automatic service discovery, a cheaper route for hybrid infrastructure monitoring.
Pros
Auto-discovery sets up checks with sensible thresholds
Rule-based web configuration
Free open-source community edition
Cons
Best features are in paid editions
Rule system takes time to master
Server runs only on Linux
Visit Checkmk Details and reviews
How this score is calculated
Editorial fit ×0.363
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Checkmk a good LogicMonitor alternative?
Verified facts
6 of 6 verified
License
GPL-2.0
Checked Oct 25, 2026github.com(opens source in a new tab)
Free edition
Checkmk Community
Checked Nov 8, 2026checkmk.com(opens source in a new tab)
SaaS option
Checkmk Cloud
Checked Nov 8, 2026checkmk.com(opens source in a new tab)
Starting price
From €190 a month, billed annually (Pro)
Checked Nov 8, 2026checkmk.com(opens source in a new tab)
Ultimate plan
From €275 a month, billed annually
Checked Nov 8, 2026checkmk.com(opens source in a new tab)
Free plan
Yes, Checkmk Community
Checked Nov 8, 2026checkmk.com(opens source in a new tab)

Quick comparison

1. DatadogTop pick

Pros

Cons

Verified facts

2. New Relic

Pros

Cons

Verified facts

3. Paessler PRTG

Pros

Cons

Verified facts

4. Zabbix

Pros

Cons

Verified facts

5. Checkmk

Pros

Cons

Verified facts