Looking for a PRTG alternative?
MantisNMS, fully cloud-hosted.
PRTG set the standard for per-sensor network monitoring. MantisNMS keeps that model, runs fully in the cloud with no Windows server to run and patch, bills monthly with no annual contract, and shares one platform and one bill with MantisRMM and Mantis360.
MantisNMS vs PRTG.
The short version.
Fully cloud-hosted
There is no monitoring server to install, run or patch: MantisNMS is hosted for you, and a lightweight collector on your network does the polling. PRTG's core server runs on Windows and is primarily self-hosted.
Billed monthly, no annual contract
MantisNMS is billed monthly with no annual contract, so you can change tiers or cancel as your network changes. PRTG is billed annually.
One platform, one bill
Network config backup with versioning, diffs and drift alerts is built in, and MantisNMS shares one tenant, collector and invoice with Mantis360 vulnerability management and MantisRMM. Bundle all three and save 10%.
Comparable per-sensor pricing
Our sensor tiers list about 4–12% below PRTG's published list prices at each tier (as of October 2026), and you choose which interfaces to monitor — the device itself is free, so a 48-port switch where you watch the uplinks is about 7 sensors. PRTG also licenses per sensor, but its auto-discovery adds a sensor for every interface carrying traffic until you remove them.
Comparable per-sensor pricing.
At 500 sensors.
~$2,100/year · monthly, no annual contract $175/month
$200/month, billed annually (Paessler list price, as of October 2026) $2,400/year
Feature by feature.
✓ = Included △ = Partial/add-on ✗ = Not available From vendor documentation and pricing pages, checked October 2026 — see the full comparison.
| Feature | MantisNMS | Paessler PRTG |
|---|---|---|
| Sensor Model & Pricing | ||
| Per-sensor pricing | ✓ | ✓ |
| Choose which interfaces bill (no forced per-port sensors) | ✓48-port switch ≈ 7 sensors | △One sensor per monitored port; auto-discovery adds active ports |
| Device counts as a free container | ✓ | ✓Licensed per sensor; devices free |
| Billed monthly, no annual contract | ✓ | ✗Billed annually |
| Monitoring | ||
| SNMP v1 / v2c / v3 | ✓ | ✓ |
| Interface bandwidth & availability | ✓ | ✓ |
| Host sensors (CPU / memory / disk / uptime) | ✓ | ✓ |
| Ping / HTTP / TCP / SSH checks | ✓ | ✓ |
| Threshold & up/down alerting | ✓ | ✓ |
| 50+ sensor types | ✓ | ✓250+ |
| WMI / DCOM host sensors | ✓ | ✓ |
| VMware vCenter / Hyper-V / Redfish sensors | ✓ | ✓ |
| Database sensors (SQL Server, Oracle, MySQL, PostgreSQL) | ✓ | ✓ |
| SSL/TLS certificate grade sensor | ✓ | ✓ |
| Discovery & Traffic | ||
| Auto discovery & topology map | ✓ | ✓ |
| NetFlow v5/v9 + IPFIX | ✓ | ✓ |
| sFlow | ✓ | ✓ |
| Top talkers / conversations / apps | ✓ | ✓ |
| Logs & Events | ||
| Syslog ingestion | ✓ | ✓ |
| SNMP trap receiver | ✓ | ✓ |
| Platform | ||
| Cloud-native SaaS (no server to run) | ✓ | △Self-hosted, or PRTG Hosted Monitor |
| MSP multi-tenant | ✓ | △ |
| Vulnerability scanning + RMM in the same platform | ✓One bill, one dashboard | ✗ |
| Network device config backup | ✓NCM | ✗Custom scripts only |
| Config versioning, diff & drift alerts | ✓NCM change management | ✗ |
| RMM actions from the network view (remote desktop, scripts) | ✓One click into MantisRMM | ✗Pairs with a separate RMM |
| Endpoint agent health on the network device | ✓MantisRMM agent card | Not documented |
| Self-hosted AI detection on the network | ✓With Mantis360 | Not documented |
When PRTG is the better fit.
PRTG offers 250+ sensor types against our 50+, and some teams prefer to keep monitoring fully on-premises. If you need a sensor type we don't have yet, or monitoring must never leave your network, PRTG may suit you better.
MantisNMS vs PRTG: questions.
No. MantisNMS is fully cloud-hosted, so there is no Windows server to run and patch. A lightweight collector on your network does the polling and sends results to your tenant.
No. MantisNMS is billed monthly with no annual contract. PRTG is billed annually.
It is comparable: per-sensor tiers that list about 4–12% below PRTG's published list prices at each tier (as of October 2026), from $175/month for 500 sensors. The bigger differences are that MantisNMS is fully cloud-hosted, billed monthly, and shares one platform and bill with MantisRMM and Mantis360.
Each check, each SNMP interface you select and each host aspect (uptime, CPU, memory, each disk) is one sensor, and the device itself is free. Interfaces you don't select aren't billed, so you usually need fewer sensors than with per-port tools.
Yes — a 30-day free trial with up to 100 sensors and no credit card.
Yes. It backs up configs from SSH-managed switches, routers and firewalls and from the Meraki cloud, with versioning, diffs, compliance rules and drift alerts.
Try MantisNMS free
No credit card required. We review every signup and email your activation link within one business day.
Start a MantisNMS trial → Read the getting-started guide →PRTG is a trademark of its owner, used here only to identify the product compared. Competitor details come from vendor documentation and published rates, checked October 2026, and may have changed; prices shown are published list prices.