SpyFu review: what $29 a month buys in competitor PPC and SEO data

By Jan Suski. I go deep on every review, checking every number against its source and digging up details other coverage misses, a habit from six years of SEO and link building for tech companies. Bylines at Surfer, Brand24, and Senuto. How the scoring works.

Published 5 August 2026 · Updated 29 August 2026Prefer this source on Google

Competitive intelligence

SpyFu launched in April 2005 under the name GoogSpy, built on web-scraping technology its founder, Mike Roberts, had already developed at his consulting firm Velocityscape. Two decades later the pitch hasn't changed much: type in a domain, and SpyFu shows every keyword that domain has ranked or bid on, plus every Google Ads test it's run, going back years.

This review covers what a buyer gets at each of SpyFu's three price tiers: the keyword and PPC data, the rank tracking, the backlink tools, the newer RivalFlow AI feature, and the places where SpyFu's own numbers disagree with what its competitors publish about themselves. It draws on SpyFu's current pricing and help pages, G2 and Capterra reviews, Trustpilot complaints, and Reddit threads from PPC managers who've run the tool against live ad accounts.

SpyFu fits a narrow buyer: a solo PPC manager or a small agency that wants a competitor's ad history and keyword list without paying Semrush's or Ahrefs' entry price. It fits less well for a team that also needs technical SEO auditing, since SpyFu doesn't build that tool yet, and it fits worse for anyone selling into a single city or region, since SpyFu's ad and rank data run at a national level only.

SpyFu sits at #9 in our competitive intelligence tools ranking, priced there for small teams on a fixed budget.

The headline price hasn't moved since TechRadar's own review of the tool, updated February 2026: $29 to $187 a month, billed annually. What's changed is what SpyFu bundles into that price; an AI content tool and a ChatGPT integration are new enough that most G2 and Capterra reviewers haven't caught up to reviewing them yet.

↑ FACT SHEETGoogle Ads competitor research and PPC data

SpyFu's core feature hasn't changed since 2005. Type a competitor's domain into the search bar, and it pulls every keyword that domain has bid on in Google Ads, plus the ad copy and landing page each keyword pointed to. Pro + AI and Team/Agency plans extend that history past 10 years; the Basic plan only reaches back 6 months, per SpyFu's own plan comparison table.

SpyFu's blog post comparing itself to Ahrefs claims "10x more PPC keywords" and "2x more SEO keywords" than the competition. Neither figure comes with a published methodology, so it reads as a marketing claim & not an audited benchmark.

Not every reviewer trusts the underlying numbers. A Reddit user in r/PPC's "SpyFu vs SEMRush for PPC?" thread, posted four years ago, put it plainly:

"SpyFu isn't very accurate. Put your own URL in there and check out what numbers it gives you and compare that to what you're actually spending."

A Reddit review from u/climberofrock, r/PPC, "SpyFu vs SEMRush for PPC?"

Other PPC managers use the tool for a narrower job than a full spend audit, and report it working there. A Reddit user in the "Does anyone honestly use SpyFu for Google Ads anymore?" thread, posted a year ago, described the actual workflow:

"We have a program that pulls in the keywords that their top 5-10 competitors are bidding on (via SpyFu API). We then run that list against all the keywords that our clients are bidding on, and report on the gaps. Very useful when doing quick account audits."

A Reddit review from u/kvothe_77, r/PPC, "Does anyone honestly use SpyFu for Google Ads anymore?"

The Pro + AI tier adds pre-built Google Ads campaign templates, a Google Search Console integration, negative-match recommendations and an ad rank tracker pulled from the same competitor archive. None of those extras exist on Basic, which caps at 5,000 weekly tracked keywords against Team/Agency's 50,000.

Keyword research tools and search volume

SpyFu's keyword overview screen lists search volume, cost-per-click, and a keyword difficulty score for any term. Basic plan users can pull the numbers for unlimited domains and keywords; the row cap only bites on exports, capped at 10,000 rows until a buyer upgrades to Pro + AI.

PPC managers use those volume and CPC figures to gauge search intent before writing ad copy, since SpyFu doesn't tag queries as informational, navigational or transactional the way some keyword research tools now do. It doesn't run a standalone generator for new keyword ideas either; ideas come from a competitor's existing list.

A G2 reviewer working as an SEO and digital strategist called the dashboard useful for exactly that kind of cross-channel read:

"The dashboard enables one to easily and seemlessly examine paid data performance (keywords, audience, etc) across platforms and vitally competitors, which drives paid campaigns via channel, bidding strategy, content and align SEO efforts."

A G2 review from an SEO and digital strategist at a mid-market company, March 2026, source

SpyFu's keyword lists carry into its rank tracker and its automated report builder, so a term pulled during research doesn't need re-entering to start tracking it. Basic plan users get 10 automated reports; Pro + AI raises that to 100, and Team/Agency removes the cap.

Rank tracking, keyword lists and specific keywords

SpyFu's rank tracker updates daily and runs against the same keyword lists built during research, so tracking a single keyword doesn't need a separate tool. The ceiling is set by tier: 5,000 weekly tracked keywords on Basic, 15,000 on Pro + AI, 50,000 on Team/Agency.

The tracker's biggest limit isn't volume. It's geography. SpyFu indexes on a national level, and a Capterra reviewer working as a vice president of account services flagged exactly that gap:

"What I like least is that it is not a geo specific if i would like so it is a national no regional report. for our local clients this provides no added value in keyword research."

Capterra review, a vice president of account services at a marketing and advertising firm, one to two years' use, February 2019, source

Buying SpyFu without realizing that national-only scope trips up buyers from the other direction too. A separate G2 reviewer quoted SpyFu's own support team confirming it:

"we index on a national level only. If your domain is focused only on local and only advertise locally, it is going to be incredibly difficult for us to see your domain's advertisements."

G2 review, a small-business user, December 2021, source

Competitor research and competitive intelligence

SpyFu's Kombat feature runs the same competitor research across several rivals at once, comparing keyword overlap, ad history and rank position for up to a handful of domains side by side. It's the tool SpyFu points to when a buyer wants competitive intelligence on a whole category & not one competitor.

SpyFu also ships domain-list building at scale: buyers filter by industry, location, ad spend, search traffic and technology stack to build a custom list of comparable domains before running keyword or ad-history pulls against them. Ahrefs and Semrush handle that scoping step differently, usually through a separate market-explorer module.

The gap between SpyFu's competitor-research claims and what users experience shows up in billing more than in the data itself. One G2 reviewer, a founding partner at a small marketing and advertising firm, described losing a client's trust over an inaccurate competitor report:

"SpyFu basically said their competitors were not using AdWords. Then the client showed me the competitors' AdWords campaign popping up in their browser… when I cancelled SpyFu, I was given a retention offer to keep the service at half price for life."

A G2 review from a founding partner at a small marketing and advertising firm, May 2017, source

↑ FACT SHEETLink building and backlink analysis

SpyFu's own figures put its backlink index at "over 1 trillion links," a Backlink Builder tool for finding prospects, and tracking for new and lost backlinks over time. Ahrefs' own data page states its index holds 35.0 trillion external backlink records, a 35x gap SpyFu doesn't mention on its own comparison page.

SpyFu has no dedicated technical SEO audit tool, so domain authority checks and backlink analysis both run through the same domain-overview screen & not a standalone crawler. A buyer doing link-building research alongside a technical audit needs a second tool for the audit half of that work, regardless of tier.

↑ FACT SHEETContent marketing with RivalFlow AI

RivalFlow AI is SpyFu's newest feature, bundled into Pro + AI for one site and into Team/Agency for up to five. It scans a page against higher-ranking competitor pages for the same keyword and generates content suggestions meant to close the gap, backed by a guarantee from founder Mike Roberts on SpyFu's pricing page: "if you don't lift your SEO ranks in 10 days, contact us, and we'll refund your money."

RivalFlow shipped too recently to show up in the G2 and Capterra review pool this piece draws from, so there's no independent account yet showing if the 10-day guarantee holds. The feature isn't available on the Basic plan at any price.

SpyFu also runs a ChatGPT integration and a separate AI Brand Monitoring tool that checks how often a brand and its competitors get mentioned inside ChatGPT's own answers & not in traditional search results. Basic plan users get 3 ChatGPT chats; Pro + AI and Team/Agency remove that cap.

Historical data and how accurate SpyFu's numbers are

SpyFu's own site can't agree with itself on how much history it holds. The pricing page states 10+ years of historical data on paid plans; the homepage separately claims 18+ years under a "Data Freshness & History" banner. Its keyword-count claims split the same way: 13.1 billion keywords on the homepage, 73 billion on SpyFu's own Ahrefs-comparison blog post, with no explanation for the gap.

Reviewers who've checked SpyFu's search-traffic estimates against real numbers describe the same accuracy problem that shows up in the PPC figures earlier in this review. TechRadar's own review, last updated February 2026, lists "limited real-time tracking" and a "US and UK focus only" among its stated cons, against "budget-friendly pricing tiers" and "extensive historical data" as pros.

The support experience adds another layer to the accuracy complaints. A G2 reviewer, an advisory board member at a small IT services firm, described the support chat as a dead end:

"SpyFu brings only rough data and does not bring you with actionable directions... If you have questions their Chat system is useless. It is almost an automated system… the expertise behind Chat is NULL. It is difficult to get straight answers."

A G2 review from an advisory board member at a small information technology and services firm, February 2018, source

↑ FACT SHEETPricing, API access and SpyFu subscription terms

SpyFu's three published tiers hold steady: $29, $89 and $187 a month billed annually ($39, $119 and $249 month to month). API access only unlocks at Pro + AI and above, with $40 of included credits on that tier and $100 on Team/Agency; full per-call pricing sits on SpyFu's developer documentation.

Extra user seats cost $15 to $30 a month apiece depending on tier, on top of the base seat included with every plan. Pro + AI also adds custom branded reporting, so an agency can hand a client a report carrying its own logo & not SpyFu's.

A G2 reviewer described being charged without authorization and struggling to reach a human about it:

"They cahrged us 99$ without getting our permimision for 3 months... When trying to contact them I accountered with chatbot that doesnt understand what I want and there is no human to speak with."

A G2 review from a current SpyFu user, source; SpyFu's own reply on the review confirms the support team issued a refund.

Not every subscriber runs into billing trouble. A Trustpilot reviewer who left an unprompted review in June 2026 praised the same pricing structure the G2 reviewer above complained about being charged under:

"SpyFu has a strong pricing model for what it offers. Its plans start around $39 per month, which makes it more affordable than many larger SEO and PPC tools. I do wish it offered a free trial, though."

A Trustpilot review, June 2026, source

↑ FACT SHEETWho SpyFu users are

Digital marketing agencies running paid and organic together are the clearest fit for SpyFu's single-screen approach, ahead of a single-channel specialist team. SpyFu's own positioning targets SEO professionals and digital marketers running lean teams without a dedicated analyst.

That shows up in how long-term users describe sticking with it. A G2 reviewer and company president wrote:

"I joined SpyFu in March of 2022. The thing that attracted me to your service, and has kept me a customer for the past 3 years, is the usefulness of your data. I run multiple businesses in different niches; however, I can use SpyFu to watch my domain rankings, spy on the competition, perform keyword research, reverse engineer competitors' ads, and so much more."

A G2 review from a company president, October 2025, source

SpyFu ranks there next to category names like Semrush and Similarweb, and agencies use it as a sales tool as much as a research tool.

A Reddit user in the same "Does anyone honestly use SpyFu" thread described buying an annual license specifically for new-client onboarding:

"I buy an annual license and use it all the time as a part of onboarding new clients. It's worth it just for the wow factor of telling prospective clients that I can estimate their competitors' activity and inform keyword plans."

Reddit, r/PPC, "Does anyone honestly use SpyFu for Google Ads anymore?"

A Capterra reviewer working in marketing at a software company picked SpyFu for its free-tier access over paid alternatives he'd tried, listing Moz Local and Ahrefs as the tools he'd weighed first:

"They've done a great job in making an affordable, effective tool. The amount of features you have access to, even without a premium subscription is mental."

A Capterra review from a marketer at a computer software company, 6 to 12 months' use, April 2022, source

SpyFu vs Semrush, Ahrefs and Similarweb

Reviewers weighing SEO and PPC tools side by side keep landing on the same trade-off: a cheaper entry price against thinner technical depth. Buyers comparing both Semrush and Ahrefs against SpyFu run into that pattern from the first pricing page they open.

Semrush's Keyword Magic Tool groups related terms automatically; SpyFu's keyword overview doesn't build that kind of clustering. Semrush publishes four SEO-focused tiers as of this writing: a free plan, an SEO-only plan at $117.33/month billed annually, a Starter plan (SEO plus AI features) at $165.17/month, a Pro+ tier at $248.17/month, and an Advanced tier at $455.67/month, with Enterprise pricing sold custom.

Adobe closed its $1.9 billion acquisition of Semrush in April 2026, buying a base of 28 million users; the tiers and refund policy carried over unchanged.

Semrush's own knowledge base states 28.8 billion keywords, 808 million domains and 43 trillion backlinks. That directly contradicts SpyFu's blog claim of "2x more SEO keywords" than Semrush, since SpyFu's own homepage claims 13.1 billion keywords, less than half of what Semrush states for itself.

The interface gap between the two runs the other direction. A G2 reviewer who's used both described SpyFu's dashboard as the less busy of the pair:

"I really like Spyfu over their competitors like SEMRush because it's much easier to understand the data and less busy on the dashboard… Best bang for buck platform in my opinion."

A G2 review from a small-business user, June 2024, source

A Reddit user comparing the two for client reporting put it more bluntly:

"SpyFu i think is better than semrush for google ads stuff. Only use it to give clients who ask the ole 'what are our competitors spending' question."

Reddit, u/ajcampagna, r/PPC, "Does anyone honestly use SpyFu for Google Ads anymore?"

Ahrefs runs a steeper price ladder: a limited Starter plan at $29/month with no rank tracking or site audit, Lite at $129/month, Standard at $249/month, Advanced at $449/month, and Enterprise from $1,499/month on an annual commitment.

Its own data page states a backlink index of 35.0 trillion records and a keyword index of 28.7 billion filtered keywords across 217 locations, both matching the figures SpyFu itself cites when comparing the two tools on its own blog, an unusual case of a vendor's claim about a rival checking out against that rival's own numbers.

Keyword difficulty scores across all three tools use different methodologies, so a rating in SpyFu doesn't translate directly to the same term's score in Ahrefs or Semrush. Keyword rankings pulled from SpyFu and Ahrefs for the same term can differ by several positions, since each crawls the SERP on its own schedule.

Similarweb publishes no full rate card of its own; most of its pricing page routes straight to a sales call, with no listed price to compare against. G2 lists starting figures of $99 a month for its AEO Intelligence plan and $125 a month for Competitive Intelligence, sourced from Similarweb itself, though neither figure appears on the vendor's own marketing pages.

Its data model also differs structurally: Similarweb estimates traffic from clickstream and panel data, while SpyFu, Ahrefs and Semrush all crawl and scrape their own indexes.

A buyer who wants total site-traffic estimates across every channel is asking a different question than SpyFu answers, since SpyFu's own scope stops at Google Ads and organic search. See our Semrush vs Similarweb comparison for how those two specifically split on traffic data against keyword and ad research.

Frequently asked questions

What does SpyFu do?

SpyFu is a competitor research tool for SEO professionals and PPC managers. It shows a domain's keyword rankings, Google Ads history and backlink profile, tracks rankings over time, and monitors a rival's backlinks against a buyer's own account.

Is SpyFu accurate?

Its own homepage and its own blog disagree on basic figures, including total keyword count (13.1 billion vs 73 billion). Multiple G2 and Reddit reviewers report PPC and search-volume estimates that don't match their own real spend and rankings, mainly for regional or local businesses, since SpyFu indexes on a national level only.

Is SpyFu legit?

SpyFu is a real, continuously sold product with a 4.6-star G2 rating from 518 reviews and a 4.4-star Trustpilot score from 152 reviews, the two trust signals most buyers check before trying a newer SEO tool.

How much does SpyFu cost per month?

$39 a month for Basic month to month ($29 billed annually), $119 a month for Pro + AI ($89 annually), and $249 a month for Team/Agency ($187 annually), plus $15 to $30 per extra user seat.

Is SpyFu free?

No plan is free. Basic starts at $29 a month billed annually, and every tier carries a 30-day money-back guarantee that support has to process by request. Cancelling alone doesn't trigger it.

What is a good SpyFu competitor?

Semrush and Ahrefs come up most often for buyers who need deeper technical SEO tooling and competitor analysis than SpyFu builds. Similarweb answers a different question: it estimates total traffic across organic, paid, social and referral channels from clickstream and panel data.

Verdict

SpyFu suits a solo PPC manager, a small agency, or a founder who wants to see a specific competitor's Google Ads keyword and ad history without paying Semrush's $165-a-month Starter price or Ahrefs' $129-a-month Lite tier just to get started. At $29 a month billed annually, with unlimited searches and exports once a buyer clears the Basic tier's export cap, SpyFu answers a narrow question cheaply: what has this competitor bid on, and what did their ads say.

It doesn't suit a team that also needs a technical SEO audit, since SpyFu still lists that tool as in development, or a business selling into a single city or region, since SpyFu's ad and rank data run at a national level only. G2 and Capterra reviewers who bought SpyFu expecting regional numbers, and reviewers who checked SpyFu's estimates against their own real ad spend, both describe the same gap between what SpyFu shows and what's happening on the ground.

It might suit a mid-sized agency willing to accept those limits for the price. SpyFu's Team/Agency tier at $187 a month undercuts Semrush's comparable Pro+ tier by roughly $60 and Ahrefs' Standard tier by about the same margin, and it still includes RivalFlow AI's 10-day ranking guarantee for five sites.

That guarantee is a bet SpyFu is making that its own AI content tool performs well enough to refund the buyers it doesn't satisfy. Team/Agency at $187 a month is built for agencies running SEO and PPC work for multiple clients from one seat pool.