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SpyFu alternatives: 4 apps ranked by verified data

Facts checked Oct 25, 2026AppBreakup editorialHow we rank

Common reasons people leave SpyFu: data strongest in the US, weaker elsewhere, and lighter technical SEO features. We ranked 4 alternatives by how directly each one replaces SpyFu, then by reviews, real visits and how recently each app's facts were checked against its own website. Semrush currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1Semrush logoSemrushFree plan + paidNoWeb3 of 366.5
2Similarweb logoSimilarwebFree plan + paidNoWeb, Browser extension5 of 562.6
3Serpstat logoSerpstatPaidNoWeb, Browser extension4 of 459.6
4Ahrefs logoAhrefsFree plan + paidNoWeb, Browser extension4 of 457.2
  1. Semrush logo

    1. SemrushTop pick

    Best for: Agencies and marketing teams wanting one suite for SEO, competitor and content research

    Free plan + paidWeb

    66.5

    score / 100

    Why switch from SpyFu

    Broader suite with both PPC and SEO competitor research worldwide.

    Pros

    • Very broad toolset covering most search marketing tasks
    • Large keyword and competitor databases
    • AI search visibility tracking alongside classic SEO

    Cons

    • Costs rise fast with extra users and toolkits
    • Crowded interface with a learning curve
    • Free account is very limited
    Visit Semrush Details and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Semrush a good SpyFu alternative?

    Verified facts

    3 of 3 verified
    Free trial
    Yes (Semrush One)
    Checked Oct 25, 2026semrush.com(opens source in a new tab)
    Keyword research
    Yes
    Checked Oct 25, 2026semrush.com(opens source in a new tab)
    Rank tracking
    Yes
    Checked Oct 25, 2026semrush.com(opens source in a new tab)
  2. Similarweb logo

    2. Similarweb

    Best for: Marketers and analysts benchmarking competitors' traffic and channels

    Free plan + paidWeb, Browser extension

    62.6

    score / 100

    Why switch from SpyFu

    Market-level traffic and channel data for competitive analysis.

    Pros

    • Traffic estimates for almost any website or app
    • Channel, referral and keyword breakdowns for competitors
    • Free traffic checker for quick lookups

    Cons

    • Expensive for full access
    • Estimates for small sites can be inaccurate
    • Weaker for technical SEO work
    Visit Similarweb Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Similarweb a good SpyFu alternative?

    Verified facts

    5 of 5 verified
    Products
    Web, AI search, app, retail, sales, stock intelligence
    Checked Oct 25, 2026similarweb.com(opens source in a new tab)
    Listed on
    NYSE (SMWB)
    Checked Oct 25, 2026similarweb.com(opens source in a new tab)
    Coverage
    100M+ websites, 4M+ apps
    Checked Oct 25, 2026similarweb.com(opens source in a new tab)
    Historical data
    10 years
    Checked Oct 25, 2026similarweb.com(opens source in a new tab)
    Free tools
    Website traffic checker, keyword tool
    Checked Oct 25, 2026similarweb.com(opens source in a new tab)
  3. Serpstat logo

    3. Serpstat

    Best for: Freelancers and agencies wanting broad SEO features at a lower price

    PaidWeb, Browser extension

    59.6

    score / 100

    Why switch from SpyFu

    Budget suite that also covers PPC keyword research.

    Pros

    • Wide feature set for the price
    • AI visibility checks included on team plans
    • Seven-day free trial of all paid features

    Cons

    • Smaller databases than the market leaders
    • Busy interface
    Visit Serpstat Details and reviews
    How this score is calculated
    Editorial fit ×0.377
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Serpstat a good SpyFu alternative?

    Verified facts

    4 of 4 verified
    Starting price
    $50/month (Individual)
    Checked Oct 25, 2026serpstat.com(opens source in a new tab)
    Free trial
    7 days
    Checked Oct 25, 2026serpstat.com(opens source in a new tab)
    Annual discount
    Up to 27%
    Checked Oct 25, 2026serpstat.com(opens source in a new tab)
    AI visibility
    1,500 brand checks on Team and Agency
    Checked Oct 25, 2026serpstat.com(opens source in a new tab)
  4. Ahrefs logo

    4. Ahrefs

    Best for: SEO specialists and agencies who rely on backlink and competitor data

    Free plan + paidWeb, Browser extension

    57.2

    score / 100

    Why switch from SpyFu

    Stronger organic and backlink data across more countries.

    Pros

    • Large, frequently updated backlink index
    • Free audits and analytics for your own verified sites
    • Clean, fast interface

    Cons

    • Lower plans are restrictive with usage credits
    • Expensive on higher tiers
    • Fewer PPC and social features than Semrush
    Visit Ahrefs Details and reviews
    How this score is calculated
    Editorial fit ×0.369
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Ahrefs a good SpyFu alternative?

    Verified facts

    4 of 4 verified
    Free tier
    Ahrefs Free for verified sites
    Checked Oct 25, 2026ahrefs.com(opens source in a new tab)
    Free site audit
    5,000 crawl credits/month per project
    Checked Oct 25, 2026ahrefs.com(opens source in a new tab)
    Backlinks history
    35 trillion external backlinks
    Checked Oct 25, 2026ahrefs.com(opens source in a new tab)
    Starter plan
    200 Site Explorer credits
    Checked Oct 25, 2026help.ahrefs.com(opens source in a new tab)

The best SpyFu alternative for…

The highest-ranked app in this list for each need.

Semrush logo

Best SpyFu alternative for most people

Semrush

Broader suite with both PPC and SEO competitor research worldwide.

Similarweb logo

Best SpyFu alternative for a free plan you can upgrade

Similarweb

Market-level traffic and channel data for competitive analysis.

Serpstat logo

Best SpyFu alternative for working in the browser

Serpstat

Budget suite that also covers PPC keyword research.

SpyFu alternatives: common questions

What is the best alternative to SpyFu?

Semrush ranks first right now. Broader suite with both PPC and SEO competitor research worldwide. Similarweb and Serpstat follow it in our ranking.

Is there a free alternative to SpyFu?

Yes. Semrush (free plan + paid), Similarweb (free plan + paid) and Ahrefs (free plan + paid) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to SpyFu?

None of the 4 alternatives in this list is open source.

Why do people switch from SpyFu?

The complaints we hear most: data strongest in the US, weaker elsewhere; lighter technical SEO features.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces SpyFu, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.