What the standardized data shows
- Only a subset of published prices can be compared as exact monthly USD values. GBP pricing, localized selectors, annual equivalents, and custom plans should not be silently converted into one false-precision league table.
- Semrush and SE Ranking document the broadest workflow coverage in this model. Ahrefs is close, while Moz Pro and Frase cover most of the core research-to-action loop.
- Screaming Frog and Sitebulb score lower by design because they specialize in technical crawling. Their focused role makes them complements to a suite, not necessarily weaker substitutes.
- Content platforms such as Surfer, Clearscope, and Frase overlap on optimization but differ in site auditing, AI visibility, integrations, and API claims.
- The cheapest plan is rarely the cheapest stack. Add-ons, seats, reporting, API units, crawl limits, tracked keywords, and content credits change total cost after purchase.
Source-linked comparison
Prices are preserved in the billing unit the vendor publishes. An interactive or custom price is left unconverted. The coverage score is reproducible from the feature flags in the downloadable dataset.
| Tool | Starting price | Free access | SEO stack coverage | Best documented fit | Source |
|---|---|---|---|---|---|
| SemrushSEO plan monthly; official page also shows annual equivalent | $139/month | trial | 100/100 | Broad SEO, competitive, content, reporting, and AI-search workflows | Official page |
| SE RankingCurrent Core/Growth pricing is selected interactively; legacy plans differ | Current plan selector | trial | 100/100 | Agency-friendly rank tracking, audits, reporting, and competitive research | Official page |
| AhrefsLite plan in GBP; Ahrefs Free is limited to verified sites | £99/month | limited | 90/100 | Link intelligence, keyword research, audits, and competitive analysis | Official page |
| Moz ProPrice varies by selected plan and billing period | Interactive plan selector | trial | 70/100 | Established all-in-one SEO research with proprietary authority metrics | Official page |
| Frase$39/month annual equivalent stated on official product comparison | $49/month | trial | 60/100 | Research-to-publish content workflows with SEO and AI visibility | Official page |
| MangoolsBasic, Premium, and Agency plans; page localizes pricing | Interactive plan selector | trial | 50/100 | Accessible keyword, SERP, rank, and backlink research | Official page |
| LowFruitsStandard annual equivalent; PAYG starts at $25 | $20.75/month | limited | 40/100 | Autocomplete ideas paired with weak-SERP analysis | Official page |
| SurferDiscovery annual equivalent shown on official pricing page | $49/month | trial | 40/100 | Content optimization, topical planning, and AI visibility | Official page |
| ClearscopeEssentials monthly; 14-day trial | $129/month | trial | 40/100 | Team content optimization with prompt and page tracking | Official page |
| Screaming Frog SEO SpiderFree crawl limit is 500 URLs; paid licenses are per user | £199/year | yes | 20/100 | Deep desktop technical crawling and custom extraction | Official page |
| SitebulbLite, Pro, and Cloud products; 14-day full trial | Plan selector | trial | 20/100 | Guided technical audits with desktop and collaborative cloud options | Official page |
Keyword research + rank tracking + site audit + backlinks + competitive research + content optimization + AI visibility + reporting + API + exports, equally weighted.Documented feature present = assigned weight; absent or unverified = zero.How to choose without buying duplicate software
Start with the workflow
List the decisions your team must make each week. Buy the smallest set that covers those decisions rather than collecting overlapping dashboards.
Keep technical crawling explicit
A suite audit and a dedicated crawler are different products. Use a specialist when custom extraction, JavaScript rendering, large crawls, or repeatable technical QA matter.
Model limits before price
Estimate projects, pages, tracked keywords, prompts, exports, reports, users, and API rows. The first plan price does not reveal the first usable plan.
Recheck prices at checkout
Vendors localize currencies and change plan structures. Use this dated index as a shortlist, then verify the official source before purchasing.
Methodology
- Selected broad SEO suites, technical crawlers, and content optimization products that can cover at least one recurring B2B SEO workflow.
- Captured the lowest documented self-serve entry point, preserving the vendor's native currency and billing language.
- Marked interactive and custom prices as non-numeric instead of estimating exchange rates or inventing monthly equivalents.
- Encoded only capabilities documented on official pricing, product, or help pages as of the snapshot date.
- Calculated an equally weighted feature-coverage score. The score measures breadth, not data quality or ROI.
Limitations
- The index does not include negotiated enterprise pricing, taxes, regional discounts, temporary promotions, or every add-on.
- Plan limits can differ even when two products document the same feature.
- Hands-on accuracy, freshness, support, and usability were outside this documentation-based phase.
- Exact USD median calculations exclude zero-cost, native-currency, per-placement, per-client, and interactive entries.
Questions about this benchmark
What is included in the SEO software pricing index?
The index covers starting price language, billing basis, free or trial access, documented features, API and export availability, official source URLs, and a reproducible stack-coverage score.
Why are some prices not converted to USD?
Currency conversion changes daily and can hide regional billing differences. We preserve native prices and calculate cross-tool USD summaries only where the vendor publishes an exact comparable USD value.
Does the highest coverage score mean the best SEO tool?
No. It means the official documentation covers more categories in this model. A specialist can be the better choice when depth, accuracy, workflow fit, or total cost matters more than breadth.
Official vendor sources
- LowFruits: Official pricing page
- Semrush: Official pricing page
- Ahrefs: Official pricing page
- SE Ranking: Official pricing page and current billing documentation
- Moz Pro: Official pricing page
- Mangools: Official pricing page
- Screaming Frog SEO Spider: Official pricing page
- Sitebulb: Official pricing and licensing documentation
- Surfer: Official pricing page
- Clearscope: Official pricing page
- Frase: Official pricing/product pages