Semrush vs SpyFu
Omar Sheriff
Last updated on
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The short answer
Semrush and SpyFu both help SEOs and PPC teams research keywords and monitor competitors, but they are built around very different priorities. Semrush is a large all-in-one platform covering technical SEO, backlinks, content, AI visibility tracking, and paid research in one interface. SpyFu is a leaner competitive intelligence tool built around PPC ad history and keyword gap analysis, at a starting price roughly four times lower. The honest split is scope versus price: Semrush does more, SpyFu costs far less for the core research workflow.
If you need keyword research, site audit, backlink analysis, and AI Overview tracking in a single platform, you have budget for $117/mo+ (annual), and vendor maturity and review volume matter to your buying decision, Semrush is the broader and more documented choice. Budget for at least the Guru tier if content or deeper PPC research is part of the workflow.
If competitor PPC research is your primary use case, you need 20 years of historical ad data, you track up to 50,000 keywords, or your budget cap is around $29/mo (annual), SpyFu covers that ground better and cheaper. It has no site audit, so pair it with a dedicated technical SEO tool if crawling is a regular deliverable.
At a glance
| Semrush | SpyFu | |
|---|---|---|
| Founded / Vendor | Semrush (semrush.com) | SpyFu (spyfu.com) |
| Category | All-in-one SEO and visibility platform | Competitive intelligence, SEO and PPC |
| Starting price | ~$117/mo (Pro, annual billing) | ~$29/mo (Basic, annual billing) |
| Public rating | 4.5/5 G2 (3,434 reviews) | 4.6/5 G2 (518 reviews) |
| Best for | All-in-one SEO, technical audit, backlinks, AI visibility | PPC history, keyword gap, high-volume rank tracking |
Vendor profile
Semrush
Semrush was founded in 2008 as SEOquake Tools by Oleg Shchegolev and Dmitrii Melnikov, launched publicly as SEMrush, and rebranded to Semrush in 2021. The company went public on the NYSE (ticker: SEMR) in March 2021 and is headquartered in Boston, Massachusetts, with offices in Barcelona, Berlin, Belgrade, Prague, Warsaw, Amsterdam, Dallas, and others. Bill Wagner became CEO in March 2025; Oleg Shchegolev moved to CTO. The platform covers keyword research, technical site audit, backlink analysis, content marketing, PPC research, local SEO, and AI visibility tracking, with a keyword database of 27.8 billion terms as of 2026.
- Founded
- 2008
- HQ
- Boston, Massachusetts, USA
- Vendor
- Semrush Holdings, Inc. (NYSE: SEMR)
- CEO
- Bill Wagner (since March 2025)
- Pricing model
- Tiered subscription; annual and monthly; add-ons priced separately
- Starting price
- ~$117.33/mo (Pro, billed yearly)
- Public rating
- 4.5/5 G2 (3,434 reviews)
SpyFu
SpyFu was founded in 2006 by Mike Roberts (the company’s own site states 2006; some secondary sources say 2005 — using the vendor-stated date). It is headquartered in Scottsdale, Arizona, and is privately held and bootstrapped. Roberts remains President and Founder. SpyFu built its reputation on competitive PPC intelligence, offering 20 years of historical Google Ads data per domain alongside keyword gap and rank tracking tools. Its team is estimated at around 21 employees as of 2025 (directional figure from Latka; treat as approximate).
- Founded
- 2006 (vendor-stated)
- HQ
- Scottsdale, Arizona, USA
- Vendor
- SpyFu, Inc. — privately held, bootstrapped
- CEO/Founder
- Mike Roberts, President and Founder
- Pricing model
- Tiered subscription; annual and monthly; 30-day money-back guarantee
- Starting price
- ~$29/mo (Basic, billed yearly)
- Public rating
- 4.6/5 G2 (518 reviews)
Pricing: what you'll actually pay
Semrush pricing was cross-verified via demandsage.com (June 2026) because the live pricing page is JavaScript-rendered and not bot-extractable. SpyFu pricing was verified directly from spyfu.com/mainpurchase as of June 2026. Verify current terms on each vendor’s pricing page before purchase, as prices and plan structures change.
| Semrush | SpyFu | |
|---|---|---|
| Starting price (annual) | ~$117.33/mo (Pro) | ~$29/mo (Basic) |
| Starting price (monthly) | ~$139.95/mo (Pro) | ~$39/mo (Basic) |
| Typical operating range | $117 to $249/mo (annual, Pro to Guru) | $29 to $89/mo (annual, Basic to Pro + AI) |
| Full-capability tier | Business, $416.66/mo (annual); Semrush One Advanced $455.67/mo (annual) | Team / Agency, $187/mo (annual); includes 5 users |
| Free plan | No | No |
| Free trial | 7 days; credit card required | No formal trial; 30-day money-back guarantee |
| Add-on costs | AdClarity $99–$220/mo; AI Visibility $99/mo per domain; Content $60/mo; Local $30–$60/mo; extra users $45–$100/mo | Extra users $30/mo each (beyond plan seats) |
| Pricing model | Tiered; add-ons priced separately | Tiered; unlimited searches included; no contracts |
| Cancellation | Verify terms at semrush.com/pricing | Cancel anytime; no contracts |
Capability comparison
Both tools cover keyword research and competitor keyword gap analysis. The differences open up at technical SEO (Semrush has a full audit; SpyFu has none), PPC history (SpyFu’s 20-year ad data is unmatched at any price), and backlink depth (Semrush indexes roughly 6.5x more domains than SpyFu). Rows where SpyFu wins are included below.
| Service | Semrush | SpyFu |
|---|---|---|
| Keyword research | ✓ — 27.8B keywords, intent filters | ✓ — 13B keywords, no intent filters |
| Rank tracking | ✓ — daily, up to 5,000 kws (Business) | ✓ — up to 50,000 kws (Team plan) |
| Site audit / technical SEO | ✓ — 140+ checks, AI Search Health | ✕ — no site audit tool |
| Backlink analysis | ✓ — 808M domains, toxic link audit | Partial — 125M domains, no toxic audit |
| PPC / competitor ad research (included) | Partial — AdClarity add-on ($99–$220/mo) | ✓ — included all plans |
| Historical PPC ad data | Partial — depth unverified (check semrush.com/adclarity) | ✓ — 20 years per domain |
| Kombat 3-way competitor view | ✕ — no direct base-plan equivalent | ✓ — built in |
| AI visibility / AI Overview tracking | ✓ — add-on at $99/mo per domain | ✕ — not available as of June 2026 (verify at spyfu.com) |
| Content marketing tools | ✓ — Semrush One Pro+ ($299/mo+) | Partial — RivalFlow AI on Pro + AI tier |
| Local SEO management | Partial — add-on ($30–$60/mo) | Partial — coverage only, no management |
| Unlimited searches and exports | ✕ — metered by plan | ✓ — all paid plans |
| Search intent classification | ✓ | ✕ |
| Free trial | 7 days, credit card required | No trial; 30-day money-back guarantee |
| API access | ✓ — Business plan and above (verify rate limits at semrush.com/api) | Unverified — check spyfu.com/api |
Decision matrix — who fits which side
| Criterion | Semrush | SpyFu |
|---|---|---|
| All-in-one SEO platform (audit, backlinks, content, PPC) | ✓ | ✕ |
| Technical site audit tool included | ✓ | ✕ |
| PPC ad history included in every plan | ✕ | ✓ |
| 20 years of historical Google Ads data per domain | ✕ | ✓ |
| Lowest entry price | ✕ | ✓ |
| High-volume rank tracking (50,000+ keywords) | ✕ | ✓ |
| Backlink analysis with toxic link audit | ✓ | ✕ |
| AI Overview and LLM visibility tracking | ✓ | ✕ |
| Unlimited searches and exports on base plan | ✕ | ✓ |
| No-contract, money-back guarantee entry | ✕ | ✓ |
| Deepest verified review pool | ✓ | ✕ |
Check = clear edge. Dash = capable but not the stronger pick. Cross = outside the model.
Strengths & tradeoffs
Both tools cover the keyword research and competitor gap analysis workflow. The honest differences are at the edges, and both sides win a meaningful number of rows.
| Axis | Semrush | SpyFu |
|---|---|---|
| Scope | Keyword research, technical audit, backlinks, content, PPC add-ons, AI visibility in one platform | Focused on competitive keyword and PPC intelligence; no site audit |
| PPC ad history | Partial — AdClarity available as an add-on at $99 to $220/mo; historical depth unverified (check semrush.com/adclarity) | 20 years of Google Ads history per domain, included on all plans — the strongest differentiator at any price |
| Technical SEO | Site audit with 140+ checks and AI Search Health scoring | No site audit tool; teams need a second tool for technical diagnostics |
| Backlink database | 808M domains indexed; toxic link audit included | 125M domains (about 6.5x smaller); no toxic link audit |
| Keyword database | 27.8B keywords with search intent classification | 13B keywords; no search intent classification |
| Rank tracking volume | Up to 5,000 keywords on Business ($416.66/mo annual) | Up to 50,000 keywords on Team ($187/mo annual) — 10x the cap at a lower price |
| Entry price | ~$117.33/mo (Pro, annual billing) | ~$29/mo (Basic, annual billing) — roughly 4x cheaper at entry |
| Free trial / entry commitment | 7-day trial; credit card required | No formal trial; 30-day money-back guarantee; cancel anytime |
| AI visibility tracking | Available as a dedicated add-on ($99/mo per domain) covering AI Overviews, ChatGPT, and Gemini | Not available as of June 2026 (verify at spyfu.com) |
| Vendor maturity | NYSE-listed, 1,000+ employees, founded 2008 | Bootstrapped, estimated 21-person team, founded 2006 |
Ratings & track record
| Metric | Semrush | SpyFu |
|---|---|---|
| G2 rating | 4.5 / 5 | 4.6 / 5 |
| G2 reviews | 3,434 | 518 |
| Founded | 2008 | 2006 |
| Ownership | Public (NYSE: SEMR) | Private, bootstrapped |
| Notable signal | Largest review pool in category; G2 Leader in 6 categories (Spring 2026) | Higher rating of the two; 20-year PPC history differentiator |
SpyFu edges Semrush on raw G2 rating (4.6 versus 4.5), but Semrush’s 3,434 reviews represent roughly 6.6x the review depth. A one-decimal difference on a much smaller sample carries less statistical weight. Semrush also swept G2’s Spring 2026 reports with top rankings in six categories, which reflects the breadth of its platform coverage. The more useful question is not which tool scores higher, but whether the broader Semrush feature set justifies its higher price for your specific workflow.
“SpyFu’s ad history is incredible. I can see exactly what keywords a competitor was bidding on three years ago. No other tool at this price shows me that.”
– Verified reviewer, G2, 2025
“By knowing exactly which keywords they rank for, where they’ve built backlinks, and where their content gaps are, I’ve been competing strategically without guessing.”
– Verified reviewer, G2, 2025 to 2026
Both tools’ data is sourced from publicly available information as of June 2026. Prices, plan limits, and feature availability change; several fields in this comparison are flagged as unverified (SpyFu API, SpyFu AI visibility tracker, Semrush AdClarity historical depth) and should be confirmed directly at each vendor’s site before purchase. This comparison is independent; we take no affiliate or referral fees from either.
Frequently asked questions
What is the difference between Semrush and SpyFu?
Is Semrush better than SpyFu?
Which is cheaper, Semrush or SpyFu?
Does SpyFu have a site audit tool?
Does Semrush include PPC competitor research in its base plans?
Which tool is better for tracking a large number of keywords?
Sources and references
- Semrush homepage (accessed June 2026)
- Semrush pricing (cross-verified via DemandSage) (accessed June 2026)
- G2 Semrush reviews (4.5, 3,434 reviews) (accessed June 2026)
- Semrush Wikipedia — founding and history (accessed June 2026)
- Semrush CEO change (Bill Wagner) (accessed June 2026)
- Semrush G2 Spring 2026 awards press release (accessed June 2026)
- SpyFu homepage (accessed June 2026)
- SpyFu pricing page (verified live) (accessed June 2026)
- G2 SpyFu reviews (4.6, 518 reviews) (accessed June 2026)
- SpyFu company page (accessed June 2026)
- SpyFu Crunchbase profile (accessed June 2026)
- SpyFu blog: Semrush vs SpyFu (vendor comparison) (accessed June 2026)
- Style Factory: SpyFu vs Semrush (third-party feature comparison) (accessed June 2026)
- DemandSage: SpyFu vs Semrush (accessed June 2026)
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