Similarweb vs Mangools: Competitor Traffic Research or Keyword Research First?
Similarweb vs Mangools, or Mangools vs Similarweb, is not a fight between two keyword tools. Similarweb estimates how much traffic any website gets and where it comes from, so it answers market and competitor questions. Mangools is a budget SEO bundle built around KWFinder that finds keywords you can realistically rank for, then tracks your positions and backlinks. We checked both tools' plans, free versions and limits on their official pages on 9 November 2026.
Quick answer: most early-stage startups need Mangools first: its Basic plan costs €37.70 a month billed yearly and includes keyword research, SERP analysis, rank tracking and backlinks, and its free plan needs no card. Use Similarweb's free tools (website traffic checker and browser extension) for a quick look at competitors' traffic, and pay for Similarweb, from $125 a month billed yearly, only when market sizing and competitor benchmarking are a regular part of your job, for example before a fundraise or a new market launch.
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Similarweb vs Mangools at a Glance
Sources: similarweb.com pricing, free tools and help centre; mangools.com pricing, FAQ and product pages, checked 9 November 2026. Mangools showed euro prices to our European visitor; Similarweb showed US dollars.
What Is Similarweb?
Similarweb is a digital market intelligence platform. Type in any domain and it estimates the site's visits, engagement, traffic sources (direct, organic and paid search, social, email, referrals, display), top countries and the keywords that send it search traffic. You do not need access to a competitor's analytics, which is why founders use it for market research, competitor benchmarking and investor decks. The figures are modelled estimates, so treat them as a way to compare sites and spot trends, not as exact visit counts; Similarweb itself notes that very small sites may return partial data.
Similarweb free version
- Website traffic checker: traffic and engagement, rankings, top SEO keywords, referring domains, search ads and technologies for any domain. Without an account it showed 3 daily searches when we checked.
- Browser extension: free for Chrome, Edge, Firefox and Opera, no account needed. It shows visits over time, traffic sources, countries, keywords with estimated clicks and CPC, and how much traffic a site gets from AI chatbots such as ChatGPT, Gemini, Claude and Perplexity.
- The limit: Similarweb calls its free data a high-level sample; deeper drill-downs, longer history and country filters need a paid plan.
Similarweb pricing in 2027
The Similarweb pricing page opens on custom packages for businesses (sales only, up to 37 months of data, 100+ countries, API, data feeds and MCP). Its Entrepreneurs view lists three self-service plans, each for one user (checked 9 November 2026):
The 7-day free trial is tied to a subscription: Similarweb's help centre says the card you sign up with is charged automatically when the trial ends unless you cancel before then. Best for: sizing a market, finding which channels work for competitors and checking how much traffic AI assistants send to your category.
Is your startup on ChatGPT?
More and more traffic is coming from Perplexity, ChatGPT, Grok and other AI tools.
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What Is Mangools?
Mangools is an SEO software company based in Bratislava whose founder and CEO, Peter Hrbáčik, launched the first version of KWFinder in August 2014. It sells one bundle of five SEO tools plus AI visibility tracking; its FAQ says the tools are not sold separately because they depend on each other. Mangools says its keyword database holds more than 2.5 billion keywords, with over 65,000 locations for local results.
- KWFinder: keyword ideas by keyword or by competitor domain, with search volumes, search trends and a keyword difficulty (KD) score based on SERPChecker data.
- SERPChecker: the current Google results for a keyword, with 45+ metrics from Mangools, Moz or Majestic, on mobile or desktop.
- SERPWatcher: rank tracking with weekly updates (daily on Agency), 65,000+ locations, desktop and mobile, email alerts and shareable reports.
- LinkMiner: competitors' backlinks from Majestic's fresh and historic index, with Citation Flow and Trust Flow.
- SiteProfiler: authority metrics for any domain from Moz and Majestic.
- AI Search Watcher: tracks whether your brand is mentioned in ChatGPT, Google AI Overviews, AI Mode, Gemini, Claude, Grok, Mistral and Llama.
Mangools pricing in 2027
The Mangools pricing page opens on yearly billing in euros (checked 9 November 2026). Every plan includes AI Search Watcher PRO (500 prompts), API and MCP access:
Monthly billing exists too; the Mangools FAQ says yearly billing saves up to 35%. There is no time-limited trial; instead there is a free plan without a credit card (5 KWFinder lookups per 24 hours, 15 related and 5 competitor keywords per lookup) and a full refund within 48 hours of a payment.
Best for: finding long-tail keywords a new site can win, checking who ranks for them, and tracking a few hundred keywords on a small budget.
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What Changed Since the 2026 Version of This Article
- Similarweb repackaged its self-service plans as Competitive Intelligence bundles that add SEO, AEO (AI search visibility) and ads, from $125 a month billed yearly.
- Mangools added AI Search Watcher to every plan and now includes API and MCP access.
- Corrected: the old FAQ said both tools offer free trials. Similarweb has a 7-day trial; Mangools has a free plan and a 48-hour refund instead.
- Removed: claims about which tool is "most cost-effective" or "better for larger businesses" that had no source, and links to third-party review sites. Every fact above comes from the two tools' own pages.
Which One Should a Startup Choose?
- You are about to write your first blog posts or landing pages: Mangools. KWFinder's difficulty score shows which keywords a new site can win.
- You have no budget: Mangools' free plan for a few keyword lookups a day, plus Similarweb's free checker and extension for competitors. Together they cost nothing.
- You are writing a business plan or an investor deck: Similarweb, to compare competitors' traffic, channels and countries. Quote its figures as estimates.
- You want to know if AI assistants send traffic in your market: Similarweb's free extension shows AI chatbot traffic; Mangools' AI Search Watcher shows whether AI answers mention your brand.
- You need both every week: Mangools Basic at €452.40 a year plus Similarweb Competitive Intelligence at $125 a month billed yearly; Similarweb's SEO plan alone costs $333 a month billed yearly.
Comparing Similarweb with other tools? Read Semrush vs Similarweb, Similarweb vs Keyword Planner, SE Ranking vs Similarweb, Rank Tracker vs Similarweb, Majestic vs Similarweb, BrightEdge vs Similarweb and Similarweb vs Keyword Insights.
Weighing Mangools? See SE Ranking vs Mangools, Moz vs Mangools, Wincher vs Mangools, AccuRanker vs Mangools, Serpstat vs Mangools, Rank Tracker vs Mangools, Ahrefs vs KWFinder and KWFinder vs Keyword Planner. On a tight budget, start with our lists of free Ahrefs alternatives, cheaper Ahrefs alternatives and Semrush alternatives.
How Founders Use Similarweb and Mangools Together
- List three to five competitors. Pick the sites your customers would compare you with, not only the biggest names.
- Check their traffic for free. Run each domain through Similarweb's free checker or extension: which channels work for them, which countries they reach, and whether AI chatbots send them visitors.
- Note their search terms. Similarweb lists the top keywords behind a site's search traffic, and KWFinder's search by domain does the same; our guide to checking competitor keywords shows more ways.
- Pick keywords you can win. Put the list into KWFinder and keep specific, lower-difficulty phrases that match what you sell.
- Publish and track. Write a page per keyword and follow rankings in SERPWatcher or clicks in Google Search Console.
Traffic and search data are also cheap market research: if competitors get little search traffic and nobody searches for the problem, that is a reason to validate your startup idea before you build. For sizing the market in numbers, try these free market size calculators, and compare more options in our roundup of competitor analysis tools.
Once you have your keywords, the F/MS AI SEO Tool turns them into articles written to rank on Google and to be cited by AI assistants such as ChatGPT and Perplexity, with human editors checking the result.
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FAQ: Similarweb vs Mangools
What is the main difference between Similarweb and Mangools?
Similarweb estimates traffic for any website and shows where it comes from, so it is a market and competitor research tool. Mangools is an SEO bundle for keyword research (KWFinder), SERP analysis, rank tracking, backlinks and AI visibility, aimed at people who want to rank their own site.
Which is cheaper, Similarweb or Mangools?
Mangools. When we checked in November 2026, Mangools Basic cost €37.70 a month billed yearly (€452.40 a year). Similarweb's cheapest self-service plan cost $125 a month billed yearly or $199 month to month, and the plan with keyword research cost $333 a month billed yearly.
Is Similarweb free?
Partly. Its website traffic checker (3 searches a day without an account), free keyword tool and browser extension are free with limits. Similarweb calls that free data a high-level sample; full data needs a paid plan.
Does Mangools have a free plan or a free trial?
A free plan, without a credit card: 5 KWFinder lookups per 24 hours with 15 related and 5 competitor keywords each, plus AI Search Watcher Free with 5 prompts. There is no time-limited trial, but Mangools refunds a payment in full within 48 hours.
Does Similarweb have a free trial?
Yes, 7 days. Its help centre says the trial is tied to a subscription and the card you sign up with is charged when it ends unless you cancel before then.
Can Similarweb do keyword research like KWFinder?
Yes, on its Competitive Intel and SEO and AEO plan ($333 a month billed yearly), which adds keyword research, a rank tracker, site audit and backlinks. Its free tools show a site's top keywords with estimated clicks and CPC.
Where can I submit a guest post about my startup?
You can publish a guest post in one of the Fe/male Switch startup blogs, which rank in Google and in AI tools like ChatGPT and Perplexity. Get a quality backlink.
Which tool shows AI search data?
Both, in different ways. Similarweb's free extension estimates how much traffic a site gets from ChatGPT, Gemini, Claude and Perplexity. Mangools' AI Search Watcher, included in every plan with 500 prompts, checks whether AI answers mention your brand.
Which one should a startup buy first?
Usually Mangools, because a new site first needs keywords it can rank for. Use Similarweb's free checker and extension for competitor traffic, and pay for Similarweb when market research becomes a regular task.
Can I use AI to write SEO articles from my keywords?
Yes. The F/MS AI SEO Tool writes articles from your keywords that are built to rank on Google and in AI assistants, with human editors reviewing them.
About the Author
Violetta Bonenkamp, also known as MeanCEO, is an experienced startup founder with an impressive educational background including an MBA and four other higher education degrees. She has over 20 years of work experience across multiple countries, including 5 years as a solopreneur and serial entrepreneur. Throughout her startup experience she has applied for multiple startup grants at the EU level, in the Netherlands and Malta, and her startups received quite a few of those. She’s been living, studying and working in many countries around the globe and her extensive multicultural experience has influenced her immensely.
