Keywordmap vs Similarweb (2026): which should you pick?
As of Oct 23, 2026, Keywordmap and Similarweb share a 2.0 GPA, and only Similarweb has a free plan.
Checked Oct 17, 2026 and Oct 23, 2026 · graded Oct 17, 2026 and Oct 23, 2026 by ToolGPA
They get the same grade on all five counts.
Price, platforms and features side by side. The table says where each price was read and when.
Keywordmap
Japanese SEO and content research platform with AI writing
Similarweb
Traffic estimates, keyword research and competitor data for any site
Which one is for you
Pick Keywordmap if
- Fits if you do SEO and content marketing for sites in Japan
- Works for agencies that sell keyword and competitor research to clients
Look elsewhere if
- Skip it if you don't read Japanese, as the site, sales process and prices are all in Japanese and yen
- Pricey if you're an agency, from ¥198,000 a month on an annual contract plus a ¥300,000 setup fee
- Watch out: businesses using it for their own sites get no published price, only a quote
- Watch out: contracts renew for the same term and price unless you cancel by the end of the month before they end
- Tight if you need more features or users than your plan has, as each extra one is ¥25,000 a month
Pick Similarweb if
- Fits if you want an estimate of how much traffic a rival gets and where it comes from
- Works for marketing teams sizing up a market by comparing lots of websites
Look elsewhere if
- Pricey if you want SEO tools, which start on the $333 plan, as the $125 plan covers traffic only
- Skip it if you need exact numbers for other sites, as these are Similarweb's estimates
- Tight if your team is bigger than one or you need more than 6 months of history, since both mean a custom package
- Watch out: the API, data feeds and integrations like Looker Studio and Salesforce need a business package with API access
- Watch out: the free version and extension show a high-level sample only, and there's no desktop or phone app
How we grade them
| 2.0GPAKeywordmapFair | 2.0GPASimilarwebFair | |
|---|---|---|
| Value for money | DThe only published prices are for agencies: Starter is ¥198,000 a month, well over $1,000, on an annual contract, plus a ¥300,000 setup fee. That's many times this category's middle. Companies using it for their own sites get a quote. | 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 | CNo free plan, but a 7-day free trial, and the site says nothing is charged during or after it. | 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 | CRivals' keywords and pages, AI keyword picks, AI outlines and articles, AI Overviews monitoring, search ad research and rank reports. The gaps: no site audit or backlink tool on record, and agency Starter gets 4 features. | 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. Everything from the site to the sales process is in Japanese, and plans are set up per contract with a chosen number of features and users. | 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, connected to Google Analytics, Search Console and ChatGPT. No desktop or phone app. | 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 | SEO and content research for Japanese sites | 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: Keywordmap and Similarweb. How we grade
Where they differ
- Keywordmap also covers long-form writing, reports, AI search visibility and content optimization.
- Similarweb also covers site audit and backlink analysis.
At a glance
| Keywordmap | Similarweb | |
|---|---|---|
| Pricing | Free trial | Free plan |
| Starts at | ¥198,000 per month on an annual contract (agency plans), plus a ¥300,000 setup fee | $125 per month, billed annually ($199 billed monthly) |
| Free plan | None | 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; nothing is charged during or after it | 7-day free trial of the self-service plans |
| Web | ||
| Browser extension | ||
| Made by | CINC Corp. | Similarweb |
| Price read from | keywordmap.jp | similarweb.com |
| Checked | Oct 23, 2026 | Oct 17, 2026 |
Worth knowing
Keywordmap
- Prices are published only for agencies and production companies; businesses using the data for their own sites get a quote.
- Every plan is an annual contract that renews for the same term and price unless cancelled by the end of the month before it ends.
- A one-time ¥300,000 setup fee applies, and each extra feature or user costs ¥25,000 a month.
- The website and sales process are in Japanese, and prices are in yen.
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
Keywordmap
- Site keyword analysis
- Shows the keywords any site ranks for, with search volume, estimated visits, SERP features such as featured snippets and local packs, and query type. Compares up to four sites.
- AI keyword selection
- Enter your site's URL and the AI proposes keywords drawn from what several competitors rank for, leaving out ones you are unlikely to rank for.
- AI outlines and writing
- A ChatGPT-based AI drafts article headings and full articles from search intent and the top-ranking pages, and scores the draft's quality.
- AI Overviews monitoring
- Newer features monitor Google AI Overviews, report on AI search results, check pages for how well AI can use them and look for wrong information in AI answers.
- Search ad research
- Analyzes competitors' listing ads and the keywords they advertise on, alongside their organic keywords.
- Rank and traffic reports
- Daily reports, ranking reports, bulk rank checks and ranking changes, with Google Analytics and Search Console connected.
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
Keywordmap
Light, Standard, Expert (companies)Custom
For businesses using the data for their own sites. Features and users are set per plan and quoted after an inquiry.
Starter (agencies)Â¥198,000
per month on an annual contract
For agencies and production companies: 1 user and 4 features, plus a ¥300,000 setup fee charged with the first month.
Light (agencies)Â¥248,000
per month on an annual contract
2 users and 6 features, plus the ¥300,000 setup fee.
Standard (agencies)Â¥348,000
per month on an annual contract
4 users and 10 features, plus the ¥300,000 setup fee. Marked as recommended.
Expert (agencies)Â¥448,000
per month on an annual contract
6 users and 14 features, plus the ¥300,000 setup fee, for use across consulting, planning and sales teams.
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
Keywordmap
No public discounts listed.
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.
Common questions
Which is cheaper, Keywordmap or Similarweb?
As of Oct 23, 2026, Keywordmap starts at ¥198,000 per month on an annual contract (agency plans), plus a ¥300,000 setup fee, and Similarweb starts at $125 per month, billed annually ($199 billed monthly).
Which has a free plan, Keywordmap or Similarweb?
As of Oct 23, 2026, only Similarweb has a free plan. Keywordmap does not, though it has a free trial.
Which platforms do Keywordmap and Similarweb run on?
As of Oct 23, 2026, only Similarweb lists a browser extension. Both list a web app. A platform missing from a listing is one its maker's pages did not mention.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.
