Semrush and SpyFu: side-by-side
A side-by-side comparison of Semrush and SpyFu — features, pricing, strengths, and where each tool falls short.
Semrush and SpyFu both surface competitor keyword data, but they are built around fundamentally different questions. Semrush asks: what does your entire marketing operation need, from site audits to content scoring to social analytics? SpyFu asks: what are your competitors spending on Google Ads, which keywords have they chased for 18 years, and how can you beat them? The buyer choosing between them is usually weighing platform breadth against competitive intelligence depth—and budget matters enormously, since entry prices are $117.33/mo versus $29/mo.
Semrush is a 20-plus-tool platform adopted by agencies and enterprise teams as a central marketing data hub. Its domain analytics, position tracking, site audit, and backlink index are all mature. But that breadth carries a cost: steep pricing, a meaningful learning curve, and many features that casual users never touch. The entry plan starts at $117.33/mo on annual billing ($139/mo month-to-month) and covers only one user; additional seats run $45/mo each.
SpyFu's identity is rooted in competitive research, specifically PPC and organic rival analysis backed by 18-plus years of historical data spanning 13.1 billion keywords and 152 million websites. Its Basic plan at $29/mo gives immediate access to that archive, though with 10,000-row export caps. SpyFu also includes RivalFlow, an AI content improvement tool that identifies gaps versus competitors at the page level. What it does not offer is a technical site audit, platform-wide Google Search Console integration, or the broad workflow toolset Semrush provides.
What each tool is
Semrush
Semrush is one of the largest SEO and digital marketing platforms, offering domain analytics, position tracking, site audit, keyword research, backlink analysis, and a growing set of AI visibility and content tools. It is widely adopted by agencies and enterprise marketing teams.
SpyFu
SpyFu is a competitive intelligence tool focused on Google Ads (PPC) and organic search (SEO) research. It allows users to search any domain and download the keywords they have ever bought on Google, the ads they have run, and the organic keywords they rank for. The platform also includes rank tracking, backlink research, keyword grouping tools, a ChatGPT integration, and an AI content improvement product called RivalFlow. SpyFu is sold as a self-serve SaaS product with monthly and annual plans targeting marketers, agencies, and PPC practitioners.
At a glance
Semrush
Full-stack SEO Suite
A full-stack SEO and marketing suite with broad coverage of search, ads, content, and AI visibility.
SEO (formerly Pro)
- •SEO plan $117.33/mo billed annually ($139/mo monthly) — 5 websites, 500 keywords tracked daily, basic keyword research & competitor analysis
- •Starter SEO + AI Search $165.17/mo billed annually ($199/mo) — 5 websites, 500 keywords, 50 AI prompts tracked daily, 1 domain AI brand performance
- •Pro+ SEO + AI Search $248.17/mo billed annually ($299/mo) — 15 websites, 1,500 keywords, historical data, content optimization, 100 AI prompts/day
- •Advanced SEO + AI Search $455.67/mo billed annually ($549/mo) — 40 websites, 5,000 keywords, API access, SEO share of voice, 200 AI prompts/day
- •Enterprise available with custom pricing, unlimited projects, and dedicated support
SpyFu
Competitive Intelligence
A competitor keyword research platform best known for exposing rivals' PPC and SEO strategies using 18+ years of historical search data.
Basic
- •10,000 row limit on search results and data exports; 1 live site tracking project
- •Pro + AI plan unlocks unlimited search results, exports, and 15k tracked keywords; 1 user included, $30/additional
- •Team/Agency plan adds 5 included users, 50k tracked keywords, unlimited tracking projects, and RivalFlow for 5 sites
- •Annual billing saves 25% (effectively 3 months free) across all plans
- •18+ years of historical data available on all plans
Feature comparison
Side-by-side feature breakdown across pricing, data, workflows, and collaboration.
| Feature | Semrush | SpyFu |
|---|---|---|
| Data & coverage | ||
| Native Google Search Console integration | GSC import (Position Tracking) | Partial |
| Keyword research database | Proprietary, very large | 13.1B keywords |
| Backlink index | Yes | Yes |
| SERP feature tracking | — | Yes |
| Workflows built for you | ||
| Quick wins (pages 1 click from page 1) | Manual via Position Tracking | No |
| Content decay detection | No | No |
| Weak & dead URL identification | No | No |
| AI content briefs | Add-on (SEO Writing Assistant) | Partial |
| Content groups & cohort analysis | No | — |
| Collaboration & sharing | ||
| Magic-link read-only sharing | No | No |
| Seats included on entry plan | 1 user (additional $45/mo) | 1 user |
| Multi-property dashboards | — | Yes |
| Pricing & value | ||
| Entry plan price | $117.33/mo billed annually ($139/mo month-to-month) | $29/mo |
| Free tier | Free account with strict limits | No |
| BYOK option | No | — |
| Competitive intelligence | ||
| Paid search (PPC) competitor data | — | Yes |
| Traffic estimates for any domain | — | Yes |
| Audience demographics | — | Not publicly documented |
| Historical data depth | — | 18+ years |
The differences that actually matter
Price gap at entry
SpyFu's Basic plan costs $29/mo—less than one-quarter of Semrush's entry-level SEO plan at $117.33/mo (annual billing) or $139/mo month-to-month. For a solo PPC practitioner or small agency focused on competitor research, that gap is decisive. Semrush's higher price buys access to a much broader tool set, but buyers who will only use three or four features rarely recoup that premium. SpyFu also includes 18-plus years of historical data on every plan; Semrush gates historical data to higher tiers.
PPC competitor intelligence depth
SpyFu was architected specifically for paid search competitive research. On any plan, users can pull a competitor's full history of bought keywords, see the actual ad copy they ran, get estimated spend figures, and receive negative keyword recommendations. Semrush offers PPC keyword research and ad copy data through its Advertising Research tool, but that is one module inside a broad platform—SpyFu's PPC teardown workflow is more specialized and historically deeper at 18-plus years versus Semrush's more limited historical window.
Platform breadth vs. focused workflow
Semrush covers SEO, PPC research, content optimization, social media, site audit, backlink analysis, and AI search visibility tracking across 20-plus tools. SpyFu's scope is competitive intelligence (organic and paid), rank tracking, backlink research, and its RivalFlow AI content improvement tool. There is no technical site crawler in SpyFu, no social analytics, and no AI search visibility tracking. Semrush's breadth is its core value proposition—and also why many users find themselves paying for capabilities they never open.
Google Search Console integration
Semrush provides a GSC import within Position Tracking, allowing users to blend their real-impressions data with Semrush's estimates. SpyFu's GSC integration is documented only inside RivalFlow—its AI content tool—on Pro + AI and Team/Agency plans. It is not a platform-wide data source on SpyFu's Basic plan or core research tools. Teams that base their SEO workflows on GSC data will find Semrush's integration broader, though neither platform replaces native GSC for first-party data.
Data export limits
SpyFu's Basic plan caps all search results and data exports at 10,000 rows. For agencies running high-volume keyword pulls or bulk competitor analyses, that ceiling becomes a blocker quickly. Upgrading to Pro + AI or Team/Agency removes the cap and adds unlimited exports. Semrush's export limits scale with plan tier too, but the cap structure is less prominently restrictive on its entry plan. Teams doing large-scale data work on SpyFu should budget for at least the Pro + AI plan.
Where each tool wins and falls short
Semrush
Strengths
- Vast tool coverage — SEO, PPC, content, social, AI visibility
- Mature competitor analysis (Traffic Analytics, Domain Overview)
- Strong brand and integrations ecosystem
Weaknesses
- Expensive — Pro $139.95/mo, Business $499.95/mo
- Steep learning curve; many features go unused
- Data is third-party estimated, not your real GSC truth
- Most useful workflows gated behind higher tiers (Guru, Business)
SpyFu
Strengths
- 18+ years of historical PPC and organic ranking data — one of the deepest archives publicly documented
- Extensive PPC competitor intelligence including ad copy history, keyword spend estimates, and negative keyword recommendations
- 13.1 billion keywords and 152 million websites indexed, with 7.2 trillion search results
- RivalFlow AI tool identifies content gaps relative to competitors and suggests page-level improvements
Weaknesses
- Basic plan imposes 10,000-row caps on all search results and exports, limiting utility for high-volume research
- GSC integration is documented only within the RivalFlow AI feature, not as a core platform-wide data source
- Traffic and keyword data are third-party estimates, not first-party verified figures
- Audience demographics data is not publicly documented in the scraped sources
Who each tool fits
Semrush
Best for
- •Large agencies and enterprise teams needing breadth across SEO/PPC/social
- •Power users comfortable with a complex 20+ tool platform
- •Teams using Semrush as their central marketing data platform
Not ideal for
- •Founders and small teams who want a focused GSC workflow
- •Buyers priced out of $117+/mo entry pricing
- •Anyone who only opens 2-3 tools regularly
SpyFu
Best for
- •PPC practitioners who want to reverse-engineer competitors' Google Ads keyword and ad copy history
- •SEO teams needing competitor organic keyword data and backlink gap analysis
- •Agencies that require white-labeled reporting and multi-domain competitive research
Not ideal for
- •Teams whose primary workflow is built around their own Google Search Console data — GSC integration is available only on higher-tier RivalFlow features
- •Sites that need a deep technical site audit or crawl-based SEO workflow
- •Users on the Basic plan who need unlimited data exports — row caps apply at that tier
Which should you choose?
Semrush is the right call for agencies and enterprise teams that need one platform covering SEO, PPC research, content, and site health across multiple clients. SpyFu is purpose-built for competitive intelligence—especially PPC teardowns—and delivers significantly more value per dollar for teams whose core question is 'what are my rivals doing in search?' Choose based on whether you need a marketing operating system or a competitor research engine.
Choose Semrush if…
- Your team runs SEO, paid search research, content scoring, and site audits from a single dashboard and needs all of those tools to talk to each other.
- You manage 5 or more client websites and need position tracking, backlink analysis, and reporting unified in one place.
- You require a backlink index alongside technical site crawl data—SpyFu does not offer crawl-based site audits.
- You want to track AI search visibility (AI prompts, brand performance in AI-generated results), a capability SpyFu does not document.
Choose SpyFu if…
- Your primary use case is reverse-engineering a competitor's Google Ads strategy—SpyFu shows every keyword they've ever bought, their ad copy history, and estimated spend, which is SpyFu's core identity.
- You need 18-plus years of historical PPC and organic ranking data to analyze long-term competitor trends; Semrush's historical data is plan-gated and less emphasized.
- Budget is a real constraint: SpyFu's Basic plan at $29/mo delivers the full historical competitor archive, while Semrush's entry price is $117.33/mo annually.
- You are an agency that needs white-labeled competitive reports on multiple domains without paying Semrush's premium agency-tier pricing.
Frequently asked questions
What buyers ask when weighing Semrush and SpyFu.
Yes—materially so. SpyFu's Basic plan is $29/mo, while Semrush's entry SEO plan is $117.33/mo on annual billing ($139/mo month-to-month). That is a 4x price difference at the base level. SpyFu also offers a 30-day money-back guarantee; Semrush offers a free account with strict usage limits but no money-back policy on paid plans.
SpyFu is purpose-built for this. It exposes every keyword a competitor has ever bought on Google, shows historical ad copy, estimates budget and spend, and flags negative keyword opportunities. This is SpyFu's core identity and has 18-plus years of historical depth. Semrush has an Advertising Research module, but PPC competitive intelligence is one feature among many rather than the platform's primary focus.
No. SpyFu does not include a crawl-based technical site audit. Its focus is competitive intelligence—rival keyword and ad data, rank tracking, and backlink research—plus the RivalFlow AI content improvement tool. If technical SEO auditing (crawl errors, Core Web Vitals, internal link analysis) is part of your workflow, Semrush's Site Audit tool covers that and SpyFu does not.
SpyFu documents 18-plus years of historical PPC and organic ranking data available on all plans. Semrush provides historical data but gates it to higher-tier plans—historical data is listed as a feature of the Pro+ SEO + AI Search plan at $248.17/mo and above. For teams needing long-term competitor trend analysis going back a decade or more, SpyFu's archive is both deeper and accessible at a lower price point.
Yes. Semrush's Position Tracking supports up to 500 keywords on its entry SEO plan, with daily updates. SpyFu's Basic plan includes 1 live site tracking project; the Pro + AI plan tracks 15,000 keywords across 10 projects, and the Team/Agency plan scales to 50,000 keywords with unlimited projects. For agencies tracking many clients at high keyword volume, SpyFu's Pro + AI plan offers competitive keyword tracking limits relative to its price.
Yes. Semrush now includes AI search visibility tracking—monitoring how a brand appears in AI-generated search results—available on its Starter SEO + AI Search plan at $165.17/mo and above, with prompt tracking at 50 to 200 prompts per day depending on tier. SpyFu does not document any equivalent AI search visibility tracking. SpyFu does have RivalFlow, an AI tool for identifying page-level content gaps versus competitors, which has no direct Semrush counterpart.
It depends on the agency's workflow. Semrush's higher plans support 15 to 40 websites with full SEO, audit, and reporting tools per client. SpyFu's Team/Agency plan includes 5 users, unlimited tracking projects, white-labeled reporting, and 50,000 tracked keywords. Agencies focused on competitive PPC and SEO research for clients will find SpyFu's agency plan cost-effective; agencies that also need site audits, content tools, and backlink outreach will lean toward Semrush despite the higher price.
No. Both tools use third-party estimated data for traffic and keyword metrics, not first-party verified figures. Semrush allows GSC data import into Position Tracking to supplement estimates with real impressions. SpyFu's GSC integration is limited to its RivalFlow AI feature on higher-tier plans and is not a platform-wide data source. For authoritative data on your own site's performance, GSC itself remains the required source.