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Atera monitors, tickets and patches your fleet from one console. WinSentinel tells you whether each Windows machine is securely configured — and fixes it when it's not. Running the helpdesk isn't the same as hardening the endpoint.
TL;DR: Atera is an all-in-one RMM + PSA platform for MSPs and IT teams (remote monitoring, ticketing, patch automation, remote access, billing and reporting, priced per technician for unlimited devices, with antivirus/EDR and backup as add-ons). WinSentinel is a Windows security hardening tool (audit misconfigurations, score posture, auto-fix, map to compliance) with the hardening knowledge built into the free single-machine product. They solve different problems — Atera monitors, tickets and patches the fleet, WinSentinel hardens each Windows machine. A fully monitored, fully patched endpoint can still be badly misconfigured, so many teams run both.
| Capability | WinSentinel | Atera |
|---|---|---|
| Primary Purpose | Security hardening & compliance | RMM + PSA (monitor, ticket, manage) |
| Security Posture Score | ✓ 0-100 with grade (A-F) | ✗ Device health/alerts, not a config score |
| Built-in Hardening Checks | ✓ 33 audit modules out of the box | Via scripts & security add-ons |
| Auto-Remediation | ✓ One-click fix for findings | Runs scripts & deploys patches |
| Compliance Mapping | ✓ CIS, SOC2, HIPAA, Essential 8 | Patch/alert reporting |
| Patch Management | ✗ Flags missing updates only | ✓ Core strength (OS & 3rd-party) |
| Ticketing / PSA / Billing | ✗ Not its job | ✓ Helpdesk, tickets, invoicing |
| Cross-Platform | Windows-specialised (10/11/Server) | ✓ Windows, macOS, Linux, SNMP |
| Misconfiguration Detection | ✓ SMBv1, BitLocker, UAC, firewall… | Only what your scripts/add-ons check |
| Remote Access | ✗ Not a remote-access tool | ✓ Built-in remote desktop |
| Real-Time Monitoring | ✓ Continuous agent mode | ✓ Core strength (alerts & thresholds) |
| Setup Time | ✓ One command, ~30 seconds | Cloud account & agent rollout |
| Open Source | ✓ MIT licensed | ✗ Proprietary (per-technician SaaS) |
| Local-Only / No Account | ✓ Runs fully offline, no signup | ✗ Cloud account required |
| CI/CD Integration | ✓ GitHub Action + SARIF | ✗ Not designed for CI |
$0/forever
All security features, no limits, one machine. Full power, no account.
Pro fleet: $29/25 nodes · $79/100 nodes
Per technician/month
Priced per technician per month (unlimited devices per technician) across tiers. Security add-ons such as EDR/antivirus and backup cost extra.
Scales per technician + add-ons
Atera pricing is approximate and per their published plans; check atera.com for current rates.
Many MSPs and IT teams run Atera to monitor, ticket and patch the fleet and WinSentinel to keep each Windows machine securely configured. They’re complementary — closing a ticket or deploying the latest patch doesn’t turn on BitLocker, disable SMBv1, or fix a weakened UAC policy unless someone built and maintains that script.
WinSentinel finds the misconfigurations an RMM never checks by default — and fixes them in one click.
dotnet tool install --global WinSentinel.Cli
Not really — they sit at different layers. Atera is an all-in-one RMM + PSA platform built for MSPs and IT departments: it remotely monitors devices, opens and tracks tickets, automates patching, gives technicians remote access and bundles billing and reporting, priced per technician for unlimited devices. WinSentinel audits how a single Windows machine is configured for security, scores it 0–100, maps findings to compliance frameworks, and one-click fixes the misconfigurations it finds out of the box. Atera runs the IT helpdesk and keeps machines monitored and patched; WinSentinel hardens how each Windows machine is set up. A fully monitored, fully patched, ticket-clean endpoint can still be badly misconfigured, so the two are complementary rather than substitutes.
Atera adds security through integrations and add-ons — bundled antivirus/EDR (such as Bitdefender or Webroot), backup and a vulnerability/patch view — layered on top of its core RMM/PSA platform, which adds to the per-technician cost. Those focus on malware defence, backup and patch compliance across a fleet. WinSentinel ships 33 Windows hardening modules in the free single-machine product (SMBv1, BitLocker, TPM, UAC, firewall profiles, PowerShell logging, stale local admins, LLMNR/NBT-NS, and more), scores them into one number, and remediates them in one click, mapped to CIS / SOC 2 / HIPAA. You don't bolt on and pay for configuration hardening as an extra — it is the product.
Monitoring and patching are necessary but not sufficient. A machine can be fully monitored, fully patched and ticket-clean and still expose SMBv1, run with BitLocker off, have UAC weakened, leave the public firewall profile disabled, or carry stale local-admin accounts — none of which a patch fixes and none of which an RMM flags unless you build the script or policy for it. These configuration weaknesses are exactly what WinSentinel audits, scores, and remediates by default. Atera keeps the fleet monitored, ticketed and current; WinSentinel closes the configuration-hardening gap on each Windows machine.
Yes. WinSentinel produces a single 0–100 posture score with a letter grade and maps every finding to CIS Windows L1, SOC 2, HIPAA and Essential 8 controls. Atera reports device health, patch status, alerts and ticket metrics, and its security add-ons report malware and vulnerabilities, but the core product is an RMM/PSA platform, not a configuration-hardening or posture-scoring product, so it does not give a built-in security score for how a single machine is set up.
WinSentinel is free for unlimited use on a single machine — all 33 audit modules, the real-time monitor, scheduled scans and PDF reports, with no account. Atera is priced per technician per month (with unlimited devices per technician) across tiers, and security add-ons like EDR or backup cost extra on top. The pricing isn't really comparable because the tools do different jobs: WinSentinel Pro — which adds fleet management across many machines — is $29/mo for up to 25 nodes or $79/mo for up to 100 nodes, with annual billing saving 17%. Many MSPs and IT teams run an RMM like Atera to monitor, ticket and patch the fleet and WinSentinel to harden each Windows machine.
Yes. WinSentinel is built specifically for Windows 10 and Windows 11 (and Windows Server). It uses native Windows APIs to audit configuration that broad cross-platform tools treat generically, which is why its hardening checks are deeper on Windows. Atera is cross-platform for monitoring and management — Windows, macOS and Linux servers, plus network devices and SNMP — which is a strength for running a mixed fleet from one console but means it is not a Windows-specialised hardening tool.