SEO tools

SEO software compared: Ahrefs vs Semrush vs Moz vs SE Ranking vs Surfer

The all-in-one platforms and content optimisers overlap heavily. This is what each is best at, who it suits and what it costs, from an agency that pays for several.

No minimum contract · Itemised monthly deliverables · UK team, Fareham HQ · Reporting from your own GA4 & Search Console

Quick answer

Ahrefs

deepest link and keyword data

Semrush

broadest feature set

SE Ranking

best value all-in-one

Scroll for the full shortlist with free tiers and prices.

The shortlist

Platforms and content optimisers

All-in-ones first, then the content tools.

Prices are as shown on vendor sites on 19 October 2026 and change often; we have no commercial relationship with any tool listed.

Ahrefs icon

Ahrefs

Best for: Backlink and keyword research depth

All-in-one SEO suite: backlinks, keywords, site audit, rank tracking. The deepest link and keyword index we use.

Free: Free tier (limited) + free Webmaster Tools for your own sitePrice: from $29/mo (Starter); full plans from $129/mo

Semrush icon

Semrush

Best for: Breadth across SEO, PPC and content

All-in-one SEO, PPC, content and competitor research platform with the broadest feature set.

Free: Free account with limits; 7-day trialPrice: Pro plan — check semrush.com/prices

Moz Pro icon

Moz Pro

Best for: Beginners and small teams

SEO suite with keyword research, rank tracking, site crawl and link data; the friendliest interface for beginners.

Free: 30-day trialPrice: check moz.com for current plans

SE Ranking icon

SE Ranking

Best for: Value for a single site or small agency

All-in-one platform with rank tracking, audit, keywords and AI-search tracking at a lower price than the big two.

Free: 14-day trial, no cardPrice: $129/mo (Core); $103.20/mo annual

Mangools icon

Mangools

Best for: Affordable keyword research and tracking

Simple five-tool suite: KWFinder, SERPChecker, SERPWatcher, LinkMiner, SiteProfiler.

Free: Free account with limited lookupsPrice: check mangools.com (annual saves 35%)

Similarweb icon

Similarweb

Best for: Competitor traffic estimates

Traffic, audience and competitor market intelligence rather than day-to-day SEO.

Free: Limited free dataPrice: from $125/mo

Surfer SEO icon

Surfer SEO

Best for: Freelancers and small content teams

Content editor scoring drafts against top-ranking pages; includes AI writing.

Free: No free planPrice: $49/mo billed yearly (Discovery)

Clearscope icon

Clearscope

Best for: Editorial teams

Content optimisation and keyword discovery favoured by larger content teams.

Free: 14-day trialPrice: $129/mo (Essentials)

MarketMuse icon

MarketMuse

Best for: Topic-cluster planning

AI content planning focused on topical authority across a site.

Free: Free plan (10 queries/mo)Price: Demo for paid plans

Frase icon

Frase

Best for: Briefs and outlines

AI research, briefs and content optimisation.

Free: 7-day trialPrice: $49/mo (Starter)

NeuronWriter icon

NeuronWriter

Best for: Lowest-cost optimisation editor

NLP-based content optimisation editor.

Free: 7-day trialPrice: $23/mo (Bronze)

How to choose

  • One small site: free stack (Search Console, GA4, Screaming Frog free) plus one affordable platform
  • In-house marketer: SE Ranking, Moz or Semrush depending on budget and whether you run ads
  • Agency or large site: Ahrefs and/or Semrush, Screaming Frog paid, a dedicated rank tracker, a reporting platform
  • Content team: Surfer or Clearscope for briefs — used with judgement, never as a target

FAQ

Questions we get asked

Ahrefs or Semrush?

Ahrefs for backlink and keyword depth; Semrush for breadth. Agencies often run both.

Is Surfer SEO worth it?

For teams producing a lot of content, yes as a briefing aid; not as a substitute for expertise.

What is the cheapest good SEO software?

SE Ranking and Mangools offer the best value for a single site.

Do I need SEO software at all?

Free Google tools go a long way; paid software adds competitor data, scale and time savings.

Rather have someone run the tools for you?

Our free growth plan uses all of these on your site. You get the findings; we only get paid if you hire us.

Reply within one working day · No obligation · We will tell you if SEO is not the right spend