PRTG Pricing in 2026: Sensor Tiers, Actual Costs, and a Full Assessment
Most monitoring tools charge you by device or by user. PRTG does neither, and that one difference decides your whole bill.
PRTG Network Monitor from Paessler prices by sensor. A sensor is a single thing you watch, so one server can use a dozen sensors on its own.
That is the part teams miss. You do not buy PRTG for 50 servers. You buy it for the several hundred sensors those servers add up to.
For this guide, I went through every PRTG tier, what a sensor actually is, and how the sensor count shapes the price you pay.
The pricing is refreshingly simple to read. Five tiers, flat monthly rates, no separate modules for logs, traces, or APM.
The catch is the sensor math. Pick a tier by device count and you will likely outgrow it within a year or two as sensors multiply.
So this is my full assessment of what PRTG costs in 2026 and where a platform like Motadata ObserveOps fits when sensor limits start to bite. Let's get into it.
PRTG Pricing at a Glance
Short on time? Here are the five paid tiers, straight from Paessler's pricing page.
Tier | Price paid annually | Sensors | Devices (Paessler estimate) |
PRTG 500 | $200 / month | 500 | About 50 |
PRTG 1000 | $358 / month | 1,000 | About 100 |
PRTG 2500 | $742 / month | 2,500 | About 250 |
PRTG 5000 | $1,300 / month | 5,000 | About 500 |
PRTG 10000 | $1,642 / month | 10,000 | About 1,000 |
There is also a free Freeware Edition with up to 100 sensors, for about 10 devices, and a 30-day trial with no sensor limit.
Two things this table cannot show. The device numbers are estimates, since full coverage uses far more sensors than basic uptime checks.
The second is that these five tiers are the Network Monitor product only. PRTG Enterprise Monitor and PRTG Hosted Monitor are priced separately.
If sensor limits are already shaping how much you monitor, Motadata ObserveOps is worth a look, since it does not cap you by sensor.
What is PRTG?
PRTG Network Monitor is Paessler's flagship monitoring tool. It watches networks, servers, applications, traffic, and infrastructure from a single Windows-based platform.
It is widely used in mid-size enterprises for its large library of ready-made sensors, covering common devices, protocols, and cloud services out of the box.
The platform monitors bandwidth, SNMP, servers, databases, cloud resources, and more, and it can watch several sites through PRTG Remote Probes.
Its main strength is simplicity and breadth for network teams. PRTG is easy to deploy and gives broad visibility without stitching together separate products for each signal.
It is worth being precise about the model. PRTG is network and infrastructure monitoring, not a full observability suite with logs, APM, and traces as first-class products.
What is a PRTG Sensor?
This is the most important definition on the pricing page, because sensors are what you pay for.
A sensor monitors one specific thing on one device. A ping is one sensor. CPU load is another. Each network interface, disk, service, and HTTP check is its own sensor.
Here is why that matters. One fully monitored server, with ping, CPU, memory, two disks, four interfaces, an HTTP check, and a service check, uses roughly 12 sensors.
So a team with 50 servers does not need 50 sensors. Proper coverage of those servers can need 500 to 1,000 sensors, which moves you up two or three tiers.
That is the single point teams underestimate. Sensor count compounds fast, and the tier you need is set by sensors, not by how many devices you count.
How PRTG Pricing Works
PRTG pricing is tier-based, and each tier is a sensor ceiling. You pick the tier whose sensor limit covers your monitoring, and you pay a flat monthly rate for it.
There are two ways to buy. The subscription is billed annually and includes updates and support for as long as it is active.
The perpetual licence is a one-time purchase to run PRTG indefinitely at your sensor limit. Updates and support beyond 12 months then need active maintenance.
Maintenance is charged as a percentage of the original licence price. Teams usually keep it current, since without it there are no security patches, bug fixes, or new sensor types.
Which Tier Fits Which Team
The tiers are not about device count, so the right one depends on your sensor total.
PRTG 500 and 1000 suit small networks with basic monitoring, where a few servers and network devices stay within a thousand sensors.
PRTG 2500 and 5000 suit medium networks with deeper coverage, once disks, interfaces, services, and cloud checks raise sensor counts higher.
PRTG 10000 suits larger networks, and teams beyond it move to PRTG Enterprise Monitor for unlimited sensors across multiple core servers.
PRTG Pricing: Every Tier Explained
Here is each tier in detail, what it covers, and the limitation teams report most often at that level.
PRTG 500
PRTG 500 costs $200 per month paid annually. It covers 500 sensors, which Paessler maps to about 50 devices.
This is the entry paid tier, and it suits a small network with basic monitoring across a handful of servers and network devices.
Limitation: The Sensor Ceiling Arrives Fast
At full coverage, 500 sensors is only about 40 well-monitored servers. Teams that plan by device count often hit the ceiling within months.
Once you pass 500 sensors, there is no small overage option. You move up to the next tier, which nearly doubles the monthly cost.
PRTG 1000
PRTG 1000 costs $358 per month paid annually. It covers 1,000 sensors, mapped to about 100 devices.
This is a common tier for growing networks, since it gives room for deeper monitoring without moving to the mid-range price.
Limitation: Growth Eats the Headroom
Every new device adds sensors, so the 1,000 ceiling fills as your network grows. Teams that buy this for a 30-server setup often reach PRTG 2500 within two years.
The step up is steep. Moving from PRTG 1000 to PRTG 2500 takes you from $358 to $742, more than double for the same platform.
PRTG 2500
PRTG 2500 costs $742 per month paid annually. It covers 2,500 sensors, mapped to about 250 devices.
This is where many production environments land, since full coverage of servers, switch ports, firewalls, and cloud resources needs thousands of sensors.
Limitation: The Cost Curve Steepens Here
At $742 a month, PRTG 2500 is the tier where the sensor model starts to feel expensive for what is still network monitoring.
Teams needing logs, APM, or traces cannot get them here at any price, since PRTG does not offer those as products.
PRTG 5000
PRTG 5000 costs $1,300 per month paid annually. It covers 5,000 sensors, mapped to about 500 devices.
This tier suits large networks with heavy sensor use across many sites, often paired with several Remote Probes.
Limitation: You Are Paying Enterprise Rates for One Signal
At $1,300 a month, you are close to the cost of a full observability platform, but PRTG still covers network and infrastructure only.
Teams at this scale often run PRTG alongside separate log and APM tools, which raises the true monitoring bill well past the PRTG line.
PRTG 10000
PRTG 10000 costs $1,642 per month paid annually. It covers 10,000 sensors, mapped to about 1,000 devices.
This is the top published tier, for enterprise networks with very high sensor counts across distributed infrastructure.
Limitation: Past This, Pricing Goes Custom
Beyond 10,000 sensors, you move to PRTG Enterprise Monitor, which uses custom pricing and a sales conversation.
That means the predictability of the published tiers ends exactly where the largest environments begin, so budgeting gets harder at the top.
PRTG Add-On Products and Extra Costs
The five tiers cover Network Monitor only. Paessler sells related products and services that change the total.
The main ones are:
PRTG Enterprise Monitor: unlimited sensors across multiple core servers, on custom pricing, for the largest environments
PRTG Hosted Monitor: a Paessler-hosted version, so you do not run the server yourself, priced separately
Maintenance: for perpetual licences, charged as a percentage of the licence price for updates and support
Two points are worth noting. Maintenance is not optional in practice, since without it you lose security patches and new sensor types.
Independent sources also note that customization, training, and migration can add from a few hundred dollars for small teams to several thousand for enterprises.
What Increases Your PRTG Costs
Five things raise a PRTG bill higher than the tier price suggests.
Sensor growth: Every device and service adds sensors, so the tier you need rises as your network grows, not as a small overage but as a full step up.
The tier jumps: Each step, such as PRTG 1000 to 2500, is a large increase, so outgrowing a tier is a significant cost event.
Maintenance on perpetual licences: Keeping updates and support current is a recurring percentage of the licence price.
Separate tools for logs and APM: PRTG covers network and infrastructure, so full observability means paying for other products alongside it.
Professional services: Customization, training, and migration add cost, especially for complex or distributed networks.
The pattern is worth naming plainly. PRTG cost tracks sensor count, so the platform rewards teams that watch what they monitor and question every extra sensor.
PRTG User Reviews: What Teams Actually Say
This section is based on our analysis of PRTG reviews across G2, Gartner Peer Insights, and Capterra. [verify: confirm current ratings and review counts before publishing]
Across those sites, PRTG reviews well on usability and breadth, and less well on scale-based cost. The themes are consistent enough to trust.
What teams praise is easy to summarize. Ease of setup and the large sensor library lead the comments, since PRTG works out of the box for common devices.
The single-pane view is a second theme. Reviewers value seeing networks, servers, and infrastructure in one console without assembling separate tools.
Reliability is a third. PRTG is described as a dependable workhorse for network and infrastructure monitoring in mid-size environments.
The criticism centres on the sensor model at scale. Reviewers describe sensor counts growing faster than expected and tier costs rising with them.
Scope is the second theme, since teams wanting logs, APM, or traces find PRTG does not cover them. The Windows-based server is a third point for some.
These reflect public review patterns rather than universal facts, so your experience will depend on your network size and how you monitor.
Top 4 PRTG Alternatives to Choose the Right Observability Tool
If sensor limits, tier jumps, or the network-only scope is what prompted your search, it is worth comparing how other platforms price the same work.
1. Motadata ObserveOps
Best for: IT and NOC teams that want network and infrastructure monitoring without a sensor ceiling, on pricing quoted to their environment.
Motadata ObserveOps brings network monitoring, infrastructure monitoring, metrics, logs, flows, and traces into one platform, so you are not adding separate tools as your needs grow.
The main difference from PRTG is what your bill tracks. PRTG counts sensors, so watching more of each device raises your tier. ObserveOps is quoted to your environment, without a per-sensor limit shaping how much you monitor.
For teams held back by a sensor ceiling, that changes the calculation. You monitor what you need to, then size the subscription once, rather than upgrading tiers as sensors multiply.
Its network monitoring covers SNMP, flows, and device health, and its infrastructure monitoring watches servers, cloud, and containers, all under one AI engine.
Where ObserveOps goes further is signal breadth. It adds logs, traces, and application performance monitoring, so you are not running PRTG plus separate log and APM tools to get a full picture.
The adaptive DFIT AI spots anomalies and groups alerts with no pre-training, so you are not tuning thresholds for weeks before it earns its place.
Deployment is the other contrast. PRTG runs on a Windows server, while ObserveOps offers SaaS, on-premises, private cloud, or public cloud for teams with data residency needs. You can start a free ObserveOps trial and point it at your own network first.
What you get:
Network, infrastructure, metrics, logs, flows, and traces on one platform, not sensor-limited tiers
Pricing quoted to your environment, without a per-sensor ceiling
Adaptive DFIT AI for anomaly detection and alert correlation, with no pre-training
OpenTelemetry-native OTLP ingestion for teams on OTel
SaaS, on-premises, private cloud, or public cloud deployment
Where it wins for PRTG teams:
No sensor ceiling, so monitoring depth does not force a tier upgrade
One platform for network plus logs and APM, in place of PRTG plus separate tools
On-premises and private cloud options for data residency
Root cause across metrics, logs, and flows, not network signals alone
Where it falls short:
Smaller sensor library than PRTG's large ready-made catalogue
Quote-based pricing, so there is no public per-tier number to check
A broader platform than teams wanting network monitoring alone may need
To see the two side by side, visit the Motadata comparisons page, or book an ObserveOps demo and run your own network through it.
How ObserveOps Pricing Differs From PRTG
The core difference is what your bill tracks. PRTG counts sensors, while ObserveOps is quoted to your environment.
Factor | PRTG | Motadata ObserveOps |
Pricing basis | Per sensor, tiered | Subscription, quoted to environment |
Published pricing | Five public tiers | Quote-based |
Cost trigger | Sensor count | Environment and modules |
Signal scope | Network and infrastructure | Network, infra, logs, traces |
Free option | 100-sensor Freeware Edition | Trial, then quoted |
Deployment | SaaS, on-prem, private and public cloud |
2. Zabbix
Zabbix is an open-source monitoring platform for networks, servers, cloud, containers, and applications, with no licence fee at all. Every feature is included in the free software, which appeals to teams with the skills to self-host.
It scales without a sensor charge, so large environments avoid PRTG's tier steps entirely. Data collection spans agents, agentless checks, SNMP, IPMI, and scripts, and it runs on Linux with open-source databases behind it.
The trade-off is the true cost of free. You take on database administration, patching, and capacity planning, and paid support tiers start around $50 a month and rise from there. Setup and tuning ask far more effort than PRTG's ready-made sensors.
Zabbix suits teams that want deep customization and no licence cost, and have the engineering time to run it well.
3. Datadog
Datadog is a broad SaaS observability platform, with network monitoring, infrastructure, APM, logs, and synthetics sold as separate products.
It goes far wider than PRTG, covering logs and APM natively rather than through sensors, and it adds strong dashboards and integrations across cloud services. Its published rates start at $15 per host per month for Infrastructure, with APM and other products priced on top.
The trade-off is cost as you scale. The modular per-product pricing adds up quickly, and Datadog's bill is known for surprising teams that grow hosts, custom metrics, or log volume. It is the wider platform, and usually the more expensive one.
Datadog suits teams that want full observability in one SaaS tool and can manage the multi-product cost.
4. LogicMonitor
LogicMonitor is a SaaS infrastructure and network monitoring platform aimed at mid-market and enterprise teams, and at managed service providers.
It is agentless and cloud-based like a hosted PRTG, with automated discovery and strong AIOps for anomaly detection and root cause. It scales without a sensor ceiling, using a per-unit model reported to run from about $16 to $53 per unit depending on plan and scale.
The trade-off is predictability and cost. Pricing is quote-based and tends to land at the premium end, and the hybrid-unit model can be hard to forecast before you talk to sales.
LogicMonitor suits teams that want a hosted, automated platform and are comfortable with quote-based enterprise pricing.
Is PRTG Worth It in 2026?
PRTG is a strong fit for network teams that want broad, out-of-the-box monitoring on a simple, published price. When your needs are network and infrastructure, PRTG is easy to buy and run.
It also suits mid-size environments that value a single pane of network visibility and a large sensor library over a wider observability platform.
It is a weaker fit for teams whose sensor counts grow quickly, since the tier jumps make scaling expensive and hard to plan past PRTG 10000.
It is also weaker for teams that need logs, APM, or traces, since PRTG does not offer them, so full observability means paying for other tools alongside it.
That is the decision. If network monitoring on a simple price is the goal, PRTG earns its place.
If you need monitoring without a sensor ceiling, or one platform across network, logs, and APM, a platform like ObserveOps is worth evaluating.
Conclusion
The story of PRTG pricing is that it is simple to read and easy to underestimate.
The five tiers are easy to read, and the rates are flat. But the sensor model means the tier you need is set by how much you monitor, not by how many devices you own.
That is not a reason to rule it out. For a network team with a stable sensor count and a home in the PRTG ecosystem, the platform is a solid, easy choice.
It is a reason to count your sensors honestly before you buy, since proper coverage uses far more than device counts suggest, and the tier jumps are large.
If you want to see how monitoring without a sensor ceiling compares against your own network, you can start a free ObserveOps trial and run a live workload through it.
FAQs
How Much Does PRTG Cost?
PRTG Network Monitor has five paid tiers, all paid annually. They run from PRTG 500 at $200 a month to PRTG 10000 at $1,642 a month.
The tiers in between are PRTG 1000 at $358, PRTG 2500 at $742, and PRTG 5000 at $1,300. Each tier is a sensor limit, and there is a free Freeware Edition for up to 100 sensors.
What Is a Sensor in PRTG?
A sensor monitors one specific thing on one device, such as a ping, CPU load, a disk, or an HTTP check. One fully monitored server can use around 12 sensors, so sensor counts grow faster than device counts.
Does PRTG Have a Free Version?
Yes. The PRTG Freeware Edition includes up to 100 sensors, enough for about 10 devices. There is also a 30-day trial with no sensor or device limit during the trial period.
Is PRTG Priced per Device or per Sensor?
Per sensor. The tier numbers, such as 500 or 2500, are sensor counts, not device counts. Paessler provides rough device estimates, but full coverage uses many sensors per device.
What Are the Hidden Costs of PRTG?
The main ones are sensor growth pushing you up tiers, maintenance on perpetual licences, separate tools for logs and APM that PRTG does not cover, and professional services for customization, training, and migration.
What Happens When I Exceed My Sensor Limit?
You move up to the next tier, since there is no small overage option. Each step, such as PRTG 1000 to 2500, is a large increase, so exceeding a limit is a genuine cost event rather than a minor add-on.
How Does Motadata ObserveOps Compare on Pricing?
PRTG counts sensors, so monitoring more of each device raises your tier. ObserveOps is quoted to your environment with no per-sensor ceiling, and it covers logs, traces, and APM alongside network monitoring, which PRTG does not offer.
Can PRTG Monitor Logs and Applications Like a Full Observability Tool?
Not really. PRTG focuses on network and infrastructure monitoring through sensors. Teams needing log analytics, distributed tracing, or application performance monitoring typically pair PRTG with other tools or move to a unified platform.
How Do I Estimate How Many Sensors I Need?
Count the checks per device, not the devices. A basic server needs ping and uptime, but a fully monitored one adds CPU, memory, each disk, each network interface, and service or HTTP checks, which reaches about 12 sensors.
Multiply your realistic per-device count across servers, switches, firewalls, and cloud resources. Most teams find the total lands two to three times higher than their device count suggests, so plan the tier from sensors, not hosts.
Author
Poonam Lalani
Content Strategist
Poonam Lalani is a B2B content strategist and writer with a background in computer engineering and experience across enterprise technology domains, including AI, cloud, DevOps, data engineering, and IT operations. She specializes in creating research-driven content that simplifies complex ideas and supports product education, thought leadership, and business growth.
