Semrush vs Similarweb (2026)
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Verdict
- Pick Semrush if you need day-to-day SEO work with published tiers (€134, €190, €286), a free plan and daily keyword and AI prompt tracking with stated limits.
- Pick Similarweb if you want market and competitor data in suites for SEO, ads and AI brand visibility, with history up to 37 months and 100+ countries, and will talk to sales.
- Price: Semrush is in EUR (SEO €134, Pro+ €286), Similarweb in USD (Web Intelligence from $125, billing cycle not stated); currencies differ, so totals are not compared.
Semrush
SEO and AI search visibility: keyword research, rank tracking, competitor analysis
From €134/mo · Free trial
Try Semrush free
Similarweb
Digital market intelligence for marketers, SEO teams and researchers, from $125/mo
From $125/mo · Free trial
Try Similarweb freeSide by side
| Feature | Semrush | Similarweb |
|---|---|---|
| Category | AI SEO & GEO | AI SEO & GEO |
| Price from (monthly billing) | €134/mo | $125/mo |
| Lowest annual-billing price | €238/mo | not published |
| Plans | SEO, Starter, Pro+, Advanced | Web Intelligence |
| Free plan | Yes | No |
| Free trial | 7-day free trial, cancel anytime | Free trial available (length not stated) |
| API | Yes | Yes |
| Platforms | not published | Web, api |
| Key limits | SEO: 5 websites to monitor; 500 keywords to track daily; Position Tracking; Site Audit · Starter: 5 websites to monitor; 500 keywords to track daily; 50 prompts to track daily; 1 domain for AI brand performance; 300 AI visibility reports per day; MCP access | Web Intelligence: Starting price as stated; the billing cycle is not stated. Business and enterprise packages are custom and handled through sales. |
| Pricing page | Official pricing page checked 2026-10-26 | Official pricing page checked 2026-10-20 |
Cost for 1 / 5 / 25 users
Semrush: SEO €134 per month plus Additional Users from €43 each, assuming the plan covers the first user. Similarweb: Web Intelligence from $125 per month; per-user pricing is not published.
| users | Semrush | Similarweb |
|---|---|---|
| 1 | €134 monthly (SEO) · €286 monthly or €238/mo billed yearly (Pro+) | From $125/mo (Web Intelligence); billing cycle not stated |
| 5 | From €306 monthly (€134 + 4 × €43, SEO) | Not published (business packages are custom, via sales) |
| 25 | From €1,166 monthly (€134 + 24 × €43, SEO) | Not published (business packages are custom, via sales) |
EUR and USD are not converted here. Semrush Additional Users start at €43, so the figures are minimums. Similarweb's card does not say how $125 is billed, which suites it covers or how long the trial runs; annual billing is arranged through support.
Which one to choose
Choose Semrush if…
- You want one place for keyword research, position tracking and site audits, with tier limits you can read before buying.
- You want a free plan or a 7-day trial before committing money.
- You track AI visibility by prompt: 50 daily on Starter, 100 on Pro+, unlimited on Advanced.
Choose Similarweb if…
- Your main question is how competitors perform across the market, not only how your own pages rank.
- You want extra history of up to 37 months or country-level coverage across 100+ countries as add-ons.
- You want real-time and bulk APIs, BI tool integrations or custom data feeds, and accept a quote-based sales process.
Pros and cons
Semrush: Pros
- Free plan: 1 demo project and 10 reports per day
- Published monthly prices for SEO, Starter and Pro+
- Database of 28B+ keyword terms
- MCP access from the Starter plan
Semrush: Cons
- Advanced is custom-priced and needs a demo request
- Share of Voice only on Advanced
- Additional Users start at €43 per month
Similarweb: Pros
- Separate suites: competitive intelligence, SEO, ads, Gen AI
- Starting price of $125 per month is published
- Free trial offered before purchase
- APIs, BI integrations and data feeds for your own stack
Similarweb: Cons
- No free plan; free site data is a limited sample
- Trial length and billing cycle of the $125 price are not stated
- Business and enterprise packages go through sales
- Annual billing requires a support request
Head to head
What each product is for
Semrush is described as a marketing platform for keyword research, competitor study and tracking presence in classic and AI search, including technical audits and content scoring. Similarweb is described as a digital data company: its Web Intelligence product compares your performance with competitors through suites for competitive intelligence, strategic SEO, ads and Gen AI brand visibility.
Pricing transparency
Semrush publishes SEO (€134), Starter (€190) and Pro+ (€286, or €238 billed yearly), and leaves Advanced to a demo. Similarweb publishes one figure, Web Intelligence from $125 per month, without a billing cycle; business and enterprise packages are quoted by sales and premium features need a custom package. Different currencies mean you should price each against your own budget.
Limits and data depth
Semrush states concrete limits: 5 websites and 500 keywords on SEO and Starter, 15 websites and 1,500 keywords on Pro+, 40+ websites on Advanced. Similarweb's card lists add-ons instead: up to 37 months of extra history, 100+ countries, conversion analysis, managed services and an AI Studio for natural-language questions.
Free access
Semrush has a free plan (1 demo project, 10 reports a day) and a seven-day trial. Similarweb has no free plan; a free trial is offered but its length is not stated, and free site data is a limited sample.
Frequently asked questions
Is Semrush or Similarweb cheaper?
They cannot be ranked cleanly. Semrush lists EUR prices from €134 per month for SEO, while Similarweb lists Web Intelligence from $125 per month in USD, with the billing cycle not stated. The tools also cover different ground, and Similarweb's business packages are quoted by sales.
Does Similarweb have a free plan or trial?
Similarweb states no free plan, only a free trial whose length is not given on the official page; free site data is a limited sample. Semrush offers more: a free plan with 1 demo project and 10 reports per day, plus a seven-day trial that can be cancelled anytime.
Semrush vs Similarweb: which is better for competitor research?
Both do competitor work. Semrush gives a competitor view of keywords, ads, backlinks and traffic. Similarweb centres on market and competitor benchmarking, with suites for SEO, ads and AI brand visibility, history extendable by up to 37 months and 100+ countries. Pick on whether you need SEO tooling or market data.
Which one tracks AI search visibility?
Both list it. Semrush tracks prompts daily: 50 on Starter, 100 on Pro+, unlimited on Advanced, with AI market share analysis. Similarweb has a Gen AI suite covering AI brand visibility and prompt analysis; its card does not publish prompt limits or the suite's price.
Do they offer an API?
Yes. Semrush lists MCP access from the Starter plan and advanced API data integration on Advanced. Similarweb lists real-time and bulk APIs, BI tool integrations, custom data feeds and SSO; its API comes with customized business packages or can be bought on its own through sales.
Other comparisons and alternatives
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How we check
Plans, prices, trials and limits in the table are copied from each tool's card, which is built from the vendor's official pages and dated. The page is only as fresh as the older of the two checks above. How we review.
Data is collected and checked by AI agents from official vendor pages; the owner is responsible for the project.
Partner link: we may earn a commission at no extra cost to you. It never changes our order or verdicts. Affiliate disclosure