Serpstat and OppAlerts count different work in their plans. Serpstat counts research searches within its SEO platform. OppAlerts limits active campaigns and daily searches. Before comparing plan capacity, you need to know which work you're counting.
Imagine you're researching twenty prospective clients this afternoon. You look up their domains, competitors, and keywords. That's a series of research searches. Now imagine tracking twenty buyer questions every Monday. That's a scheduled set of answer collections repeated over time.
OppAlerts publishes this comparison. The Serpstat figures come from research done in September 2026. Check the current prices and limits before you buy.
Count the searches and collections separately
The Serpstat plans reviewed included 100, 500, 1,000, and 5,000 daily searches for sites, keywords, and links, at $50, $100, $169, and $410 a month. The entry plan allowed five projects; the others allowed unlimited projects. The highest tier reviewed included 1,500,000 audit pages and 2,500,000 export rows a month.
You might run several searches for one prospective client before you understand its position. Twenty clients doesn't tell you whether a hundred-search allowance is enough. Work through a typical investigation and count the lookups you actually need.
OppAlerts continually checks for new opportunities and limits daily searches. Compare those searches with Serpstat's site, keyword, and link research allowances.
Include the audits and integrations you need
Serpstat provides site auditing, which OppAlerts doesn't. It also describes MCP client support for ChatGPT and Claude from the second tier. OppAlerts provides read-only API and MCP access. Check which operations and data your application needs. The same type of connection doesn't mean both products expose the same information.
Serpstat says its brand monitoring covers ChatGPT, Claude, Gemini, and more than 140 other AI models. That's the vendor's figure. This comparison doesn't establish a common definition of what it collects for each model or how often. Ask to see the reports and schedule for the services you need. OppAlerts researches AI recommendations.
OppAlerts provides publication and content research. It doesn't provide the same depth of conventional keyword research, so account for that research alongside site auditing when deciding what you need.
Research publications for a prospective client
Suppose one prospective client makes commercial heating equipment and needs publications for a technical case study. OppAlerts searches the Prospect Index by subject and opportunity type, including contribution pages, directories, podcasts, awards, and speaking submissions. That answers a different question from researching the client's keywords or backlink profile.
A relevant publication might require measured energy use and the building owner's permission. Read the requirements and check whether the case study can meet them. Then use the available website contact paths to find the current submission process. Published contacts aren't verified for deliverability, and OppAlerts doesn't send outreach.
News research, unlinked mentions, PageRank history, and the Content Optimizer help with further investigation. The Serpstat pricing page reviewed didn't describe these tools in the same form. That doesn't establish every limit of its wider product.
Which one fits your work?
Look at Serpstat if your workload depends on conventional SEO research and site auditing. Look at OppAlerts for opportunity monitoring and publication research. Count individual research lookups separately from recurring collections, then test the reports you actually need.
Other alternatives
If you also need audits, keyword research, or enterprise reporting, use the SEO platform overview to work through those requirements.
For the allowance calculations, see how to compare AI search tool costs.
See all comparisons and alternatives.
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