Semrush vs Similarweb
We give Semrush a 2.2 GPA and Similarweb a 2.0, out of 4.0. Semrush grades higher on features. They get the same grade on value for money, the free plan, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Semrush
SEO suite for keyword research, rank tracking and AI search visibility
Similarweb
Traffic estimates, keyword research and competitor data for any site
How we grade them
| 2.2GPASemrushFair | 2.0GPASimilarwebFair | |
|---|---|---|
| Value for money | DThe SEO plan, the one Semrush aims at freelancers and small businesses, is $117.33 a month billed yearly ($139 monthly). That's in this category's dearest tenth, for one user. AI search tracking needs Starter at $165.17, and each extra person is from $45 a month. | DGraded against the suites it's listed beside. Competitive Intelligence is $125 a month billed yearly ($199 monthly) for 1 user, with traffic data but no SEO tools. That's dearer than Semrush's SEO plan, and keyword research, rank tracking and audits start at $333. |
| Free plan and trial | CA free account with no card: 1 project, 10 reports a day and 10 tracked keywords. Fine for a look around, but you'll hit the wall in an afternoon. The 7-day trial of the paid plans checks your card with a small charge that's refunded at once. | CThe free version on similarweb.com and the free browser extension show a high-level sample of any site's traffic and keywords. Good for a quick look, not for real work. There's also a 7-day trial of the self-service plans. |
| Features | BKeyword research from a database it puts at 29 billion keywords across 142 countries, competitor and backlink analysis, daily rank tracking and Site Audit. It covers the whole job, though the SEO plan only gets the basic research tools and no AI visibility. | CTraffic and engagement estimates, demographics and channel mix for any site, with SEO, AI and ad intelligence on dearer plans. Things the suites don't do, but the $125 plan has no SEO tools, and other sites' figures are estimates, not their analytics. |
| Ease of use | CNo rating on record. It's a big suite with a lot of reports, and there are projects to set up and plenty to learn before it all makes sense. | CNo rating on record. Typing in a domain is simple, but the platform is big, and reading traffic estimates and channel splits takes some learning. |
| Platforms and integrations | BWeb only, with no desktop or phone app. It connects to Google Analytics, Search Console, Wix, Yoast, AIOSEO, Supermetrics and Monday.com, has MCP from Starter, and the API comes with the custom-priced Advanced plan. | BWeb plus a free extension for Chrome, Edge, Firefox and Opera. It connects to Looker Studio, Excel, Salesforce, HubSpot, Snowflake, Tableau and Power BI, but only on business packages with API access. No desktop or phone app. |
| Best for | the broadest all-in-one SEO suite | sizing up a competitor's traffic |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Semrush and Similarweb. How we grade
Price against what you get
Semrush starts at $117.33 a month and scores 2.7 out of 4 on features, ease of use and platforms. Similarweb starts at $125 a month and scores 2.3.
Semrush scores higher and starts $7.67 a month lower. Of the other SEO tools on the chart, none scores higher than Semrush for less, and 9 score higher than Similarweb for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Semrush starts at $117.33 per month, billed annually ($139 billed monthly). Similarweb starts at $125 per month, billed annually ($199 billed monthly).
- Only Similarweb lists a browser extension.
- Semrush also covers reports.
At a glance
| Semrush | Similarweb | |
|---|---|---|
| Pricing | Free plan | Free plan |
| Starts at | $117.33 per month, billed annually ($139 billed monthly) | $125 per month, billed annually ($199 billed monthly) |
| Free plan | Free account: 1 project, 10 analytics reports a day across the main tools and 10 keywords in Position Tracking. No credit card needed. | Free version on similarweb.com and a free browser extension: a high-level sample of traffic, keyword and ranking data for any site, without the deeper drill-downs. |
| Free trial | 7-day free trial of paid plans; a card is checked with a small charge that is refunded at once | 7-day free trial of the self-service plans |
| Web | ||
| Browser extension | ||
| Made by | Semrush Holdings | Similarweb |
| Price read from | semrush.com | similarweb.com |
| Checked | Oct 17, 2026 | Oct 17, 2026 |
Who each one suits
Semrush
- Freelancers and in-house marketers who want research, tracking and audits in one account
- Agencies comparing many client sites against their competitors
- Brands that want to watch their visibility in AI chat answers alongside Google rankings
Similarweb
- Sizing up a competitor's traffic and where it comes from
- Market researchers and analysts comparing many websites
- Marketing teams that want SEO, ads and traffic data in one place
Worth knowing
Semrush
- Each plan includes one user; extra users start at $45 a month each, priced by plan level.
- Scheduled PDF reports are an add-on at $10 a month, or $20 with white-labeling; Advanced includes reporting.
- API access and share of voice come only with the custom-priced Advanced plan.
- Local, content, social, advertising, AI PR and traffic tools are separate toolkits with their own prices.
Similarweb
- Self-service plans cover one user and 3 or 6 months of history; extra seats and up to 37 months of history come in custom packages sold through sales.
- Keyword research, rank tracking, site audit and backlinks start with the $333 plan; the $125 plan covers traffic and competitor analysis only.
- The API, data feeds and integrations such as Looker Studio, Excel and Salesforce need a business package with API access.
- Traffic figures for other people's sites are Similarweb's estimates, not those sites' own analytics.
Key features
Semrush
- Keyword research
- Look up search volume, difficulty and intent from a database Semrush puts at 29 billion keywords across 142 country databases.
- Competitor and backlink analysis
- See which keywords and pages bring a rival site its traffic, and inspect any domain's backlink profile.
- Position Tracking
- Track daily rankings for 500 to 5,000+ keywords depending on the plan; Pro+ adds tracking by location and device.
- Site Audit
- Crawl your sites for technical SEO problems. From the Starter plan the audit also checks how ready a site is for AI search.
- AI visibility tracking
- Starter and above track daily whether set prompts in AI chat tools mention your brand, with sentiment monitoring. The SEO plan has none of this.
- MCP and API access
- Starter and above can query Semrush data from AI assistants through MCP; the API itself comes with the Advanced plan.
Similarweb
- Website traffic and engagement
- Estimated visits, engagement, audience demographics and marketing channel mix for any website, set side by side with competitors.
- Keyword research and rank tracking
- Keyword research, keyword gap analysis and a rank tracker with SERP analysis, included from the Competitive Intel & SEO & AEO plan.
- Site audit and backlinks
- Technical site audits and backlink data sit in the same SEO bundle, alongside an organic search overview of any domain.
- AI brand visibility
- Tracks how a brand appears in AI chatbot answers, with 150 tracked prompts, sentiment and citation analysis, and traffic arriving from AI tools.
- Ad intelligence
- The top self-service plan shows competitors' ad creatives and campaigns, search and display ads, advertiser demand signals and ad spend.
- Free browser extension
- Shows traffic, AI chatbot visits, top keywords and ranking for the site in the current tab, on Chrome, Edge, Firefox and Opera.
Plans
Semrush
Free$0
1 project, 10 analytics reports a day and 10 tracked keywords, for trying the tools.
SEO$117.33
per month, billed annually ($139 billed monthly)
1 user, 5 websites, 500 keywords tracked daily, basic keyword and competitor research, and Site Audit. No AI search tracking.
Starter$165.17
per month, billed annually ($199 billed monthly)
5 websites and 500 keywords, full keyword research tools, MCP access, 50 AI prompts tracked daily and 300 AI visibility reports a day.
Pro+$248.17
per month, billed annually ($299 billed monthly)
15 websites, 1,500 keywords, historical data, content optimization, cannibalization checks, multi-location tracking and 100 AI prompts.
AdvancedCustom
40+ websites, 5,000+ keywords, share of voice, API access, team users, reporting and unlimited AI prompts. Sold after a demo.
Similarweb
Competitive Intelligence$125
per month, billed annually ($199 billed monthly)
1 user and 3 months of history: traffic and engagement, demographics, marketing channels and competitor alerts. No SEO tools.
Competitive Intel & SEO & AEO$333
per month, billed annually ($399 billed monthly)
1 user and 6 months of history. Adds keyword research, rank tracking, site audit, backlinks and 150 tracked AI chatbot prompts.
Competitive Intel, SEO & AEO & Ads$542
per month, billed annually ($649 billed monthly)
Everything in the SEO plan plus ad intelligence: creatives, search and display ads, advertiser demand and ad spend. 1 user.
Businesses & EnterprisesCustom
Sold through sales: more seats, up to 37 months of history, country-level data, AI Studio, API, data feeds, SSO and managed services.
Ways to pay less
Semrush
- Annual discount
Save up to 17% with annual billing
Semrush's pricing page lists annual billing at up to 17% less: Starter is $165.17 a month billed annually instead of $199 billed monthly.
Similarweb
- Annual discount
Lower monthly rate with annual billing
Billed annually, Competitive Intelligence is $125 a month instead of $199, the SEO plan $333 instead of $399, and the Ads plan $542 instead of $649.
