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It's a split decision.
Shodan Monitor is the clearer choice if you need to track your own internet-facing IP range and want a published paid entry point: Freelancer is $69/month, while Membership costs $49 one-time. Its listed plans cap most paid accounts at one user. Choose Censys for broader security investigations, adversary tracking, supplier exposure, and cloud connectors, but paid prices are not published and require a sales quote. Both offer a free option; neither source provides comparable support or learning-curve details.
01Side by side
| Shodan Monitor | Censys | |
|---|---|---|
| Starting price | Freelancer: $69/month; Membership: $49 one-time. | Paid pricing not published; contact sales. |
| Free plan | Free basic access; limited search results. | Free account; basic visibility into standard ports/services. |
| Best for | Monitoring internet-exposed devices in your network range. | Security investigations, threat hunting, and exposure management. |
| Core strength | Network exposure monitoring with real-time alerts. | Internet-wide infrastructure mapping and security investigations. |
| Learning curve | Not published. | Not published. |
| Integrations / data | Weekly internet crawl; API for lookups, search, streaming. | AWS, Azure, GCP connectors; historical data. |
| Team / seat costs | Most listed paid plans include one user. | Core and Adversary include 5+ users; price unpublished. |
| Support | Not published. | Not published. |
Shodan Monitor Choose Shodan Monitor if
- Choose Shodan Monitor if you need to monitor your network range.
- Choose Shodan Monitor if you want a published $69/month paid plan.
- Choose Shodan Monitor if one-user plans and IP caps fit.
Censys Choose Censys if
- Choose Censys if your team investigates threats and attacker infrastructure.
- Choose Censys if you need supplier exposure monitoring or cloud connectors.
- Choose Censys if you can budget after getting a sales quote.
02Pricing compared
Shodan is easier to budget because it publishes paid prices. Its Freelancer plan is $69 per month and covers one user, up to 5,120 monitored and scanned IPs per month, and 10,000 query credits. Membership is a $49 one-time account upgrade for one user and monitoring of 16 IPs; it is not a monthly plan. Small Business costs $359 per month, while Corporate is $1,099 per month. Shodan also has a free plan with basic API access and limited search results.
Censys offers a free account for basic visibility into standard ports and services, but it does not publish paid prices. Its paid plans require contacting sales, so compare a quote against your needs before budgeting. Both vendors have free options, but only Shodan provides a published paid entry price.
03Features and depth
Shodan Monitor is the more direct fit for watching your own internet-facing IP range. It shows devices and exposed services, supports network discovery, and offers notifications when something unexpected appears. Shodan says it crawls the internet weekly. Its paid plans also bundle query credits, search results, and scan capacity, with monitored-IP limits that vary by plan.
Censys covers a wider set of security workflows. Its Internet Map includes IPs, ports, services, certificates, websites, and DNS; the platform also supports investigations with historical context, adversary tracking, exposure management, and supplier monitoring. The Attack Surface Management plan lists daily updates, AWS, Azure, and GCP connectors, tailored alerts, and automated seed refresh. Censys also offers threat intelligence, with threat data view-only on Core and fully searchable on Adversary Investigation and Security Operations. The choice is less about matching feature lists than scope: Shodan emphasizes monitoring a defined network range, while Censys targets broader security investigations and exposure management.
04Ease of use and learning curve
Neither source gives comparable details on setup time, interface complexity, support quality, or learning curve, so we would not treat either as the clearly easier product. Shodan’s plans are more concrete for an individual or small team assessing limits: most listed paid plans allow one user, with specific IP and query caps. Censys lists team-oriented options, including plans with five or more users and a Security Operations tier with unlimited users, but its paid pricing requires a sales conversation. That makes Shodan simpler to evaluate on paper; it does not prove it is simpler to operate. Ask Censys for a quote and confirm the workflows, data history, and API needs included before comparing total cost.
Questions people ask
Which is cheaper, Shodan Monitor or Censys?
Shodan is easier to price from public information: Freelancer is listed at $69 per month, and Membership is a $49 one-time upgrade. Censys does not publish paid-plan prices and requires contacting sales, so we cannot say whether its quote is cheaper.
Does Shodan Monitor have a free plan?
Yes. Shodan lists a free plan with basic API access and limited search results. Its paid Membership is a separate $49 one-time account upgrade and includes monitoring of 16 IPs, along with scan and query credits.
Can Censys monitor an attack surface?
Yes. Censys lists an Attack Surface Management plan with daily attack surface updates, cloud connectors for AWS, Azure, and GCP, tailored security alerts, and automated seed refresh. Its paid price is not published, so ask sales for a quote.
Which tool is better for threat hunting?
Censys is the more explicit fit for threat hunting: its Adversary Investigation plan is aimed at threat-hunting and CTI teams, and it lists fully searchable threat data. Shodan’s listed focus is monitoring and discovering exposed devices and services in a network range.