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Tool comparison
Both tools graded on the same fifteen criteria. The verdict lists the criteria where one tool leads the other by two points or more.
Verdict
Verdict
Research depth
Discovery
How well the tool supports keyword, competitor, SERP, backlink, or market research before execution.
GTmetrix
Deep performance diagnostics, but not SEO research depth.
GTmetrix documents Lighthouse reports, waterfalls, request details, audits, and report resources, but its feature set is web-performance research rather than keyword/competitor SEO research: https://gtmetrix.com/features.html
Screpy
Covers keyword research, SERP analysis, organic keywords, competitor ads, backlinks, referring domains, and Search Console, but depth and quotas vary by plan.
Feature directory lists Keyword Research, SERP Analysis, Organic Keywords, Competitor Ads, Backlink Checker, Referring Domains, and Search Console: https://screpy.com/features/
Keyword research quality for SEO content
Discovery
How well the tool identifies, qualifies, clusters, and prioritizes keywords specifically for SEO content creation.
GTmetrix
No keyword research product is documented.
The official feature page describes Web Vitals, CrUX, page composition, audits, and requests, with no keyword database or keyword research workflow: https://gtmetrix.com/features.html
Screpy
Provides ideas, intent, volume, CPC, trends, and content-brief linkage; official detail is positive but not evidence of breadth comparable to specialist databases.
Screpy says Keyword Research finds ideas, reviews intent, and connects demand with pages, articles, and campaigns: https://screpy.com/feature/keyword-research/
Content execution
Execution
How well the tool helps produce, optimize, or operationalize SEO content.
GTmetrix
Does not create, optimize, or publish content.
GTmetrix describes performance audits and optimization opportunities, not content generation or editing: https://gtmetrix.com/features.html
Screpy
Generates queued article outlines/first drafts and Markdown for review, but does not claim autonomous publishing or optimization execution.
AI Article Generator creates drafts from titles/briefs and requires review before publishing: https://screpy.com/feature/ai-article-generator/
Context gathering
Grounding
How well the tool gathers the business, competitor, SEO, internal, third-party, and custom API context needed for differentiated recommendations and content.
GTmetrix
Strong page/request and lab context; no company or editorial context layer.
Reports include page composition, request/response details, CDN cache status, IP, domains, and filterable request data: https://gtmetrix.com/features.html
Screpy
Uses crawled pages, Search Console data, ranking context, and project-level website data to prioritize opportunities.
Quick Wins is described as turning crawl and Search Console data into prioritized technical, content, and ranking opportunities: https://screpy.com/features/
AI-search / GEO
Visibility
How directly the tool helps teams improve visibility in AI answer engines and citation-oriented search journeys.
GTmetrix
No search-generative-experience or answer-engine optimization feature is documented.
The current MCP documentation describes performance testing, metric analysis, comparisons, and recommendations, not AI-search visibility measurement: https://gtmetrix.com/blog/gtmetrix-mcp/
Screpy
Tracks AI mentions, citations, sources, prompts, and competitor share of voice across monitored AI answers.
AI Visibility feature explicitly lists mentions, citations, sources, prompts, and competitor share of voice: https://screpy.com/feature/ai-visibility/
GEO readiness
Visibility
How ready the tool is for generative engine optimization: answer-engine visibility, citation likelihood, AI-search prompt surfaces, and content structures that AI systems can use.
GTmetrix
Global test locations are not GEO/AI-search readiness scoring.
GTmetrix provides geographic performance test servers, while its official locations page does not describe generative-engine optimization: https://gtmetrix.com/locations.html
Screpy
Has AI visibility monitoring and an SEO MCP, but official pages do not establish broad autonomous optimization for generative search.
AI Visibility monitors AI answers and SEO MCP exposes workflows to assistants: https://screpy.com/feature/ai-visibility/ and https://screpy.com/feature/seo-mcp/
Technical SEO
Diagnostics
How strong the tool is for crawling, audits, indexability, metadata, status codes, and technical site health.
GTmetrix
Strong technical performance and Core Web Vitals diagnostics, but not a full technical SEO crawler.
GTmetrix measures Web Vitals, Lighthouse metrics, structure audits, layout shifts, slow JS/CSS, oversized resources, and page delivery practices: https://gtmetrix.com/features.html
Screpy
Strong explicit technical suite spanning audits, crawling, status/redirects/canonicals, broken links, image SEO, Core Web Vitals, PageSpeed, uptime, and index status.
Official feature directory documents the technical modules and their functions: https://screpy.com/features/
Publishing workflow
Operations
How well the tool moves work into CMS, publishing, approvals, or automated production workflows.
GTmetrix
No CMS publishing workflow is documented.
The API documentation covers testing and report retrieval rather than editing or publishing website content: https://gtmetrix.com/api/docs/2.0/
Screpy
Supports reviewed Markdown draft output, but no official native CMS publishing workflow is documented.
The article feature says users review Markdown output before publishing: https://screpy.com/feature/ai-article-generator/
Measurement & tracking
Measurement
How well the tool monitors rankings, content performance, visibility, or ongoing SEO progress.
GTmetrix
Excellent synthetic measurement, monitoring, history, alerts, and real-user metrics.
GTmetrix supports automated monitoring, historical graphs, alerts, Web Vitals, Lighthouse metrics, and CrUX history: https://gtmetrix.com/features.html
Screpy
Offers rank, map, AI visibility, Core Web Vitals, PageSpeed, uptime, Search Console, analytics, and reports over time.
Monitoring and reporting modules are listed with trend/monitoring functions: https://screpy.com/features/
Team collaboration
Operations
How well the tool fits multi-person workflows, agencies, approvals, handoffs, and repeatable processes.
GTmetrix
Some team and reporting support, but limited evidence of broad collaborative SEO workflows.
The Expert plan includes five team seats and the pricing page lists white-label PDF reports as an Enterprise option: https://gtmetrix.com/pricing.html
Screpy
Project workspace, team seats, client/white-label reports, and scheduled delivery support team workflows; no detailed review/approval system is claimed.
Pricing lists team-member quotas and Reports included; Project Workspace and White-label SEO Reports are official features: https://screpy.com/pricing/ and https://screpy.com/features/
Value accessibility
Buying
How easy it is for a team to reach value relative to pricing, setup complexity, and required expertise.
GTmetrix
Free entry point and relatively low-cost paid tiers provide accessible performance testing.
The official pricing page presents a free start and paid Lite pricing of $4.99/month billed yearly, alongside higher tiers: https://gtmetrix.com/pricing.html
Screpy
Transparent low displayed entry price, free trial, and three clear tiers make access relatively straightforward, though key modules are gated.
Pricing shows Pro $6/month, Max $15/month, Ultra $30/month and a 7-day trial: https://screpy.com/pricing/
Free tools
Buying
How useful the tool is before payment through free tools, free plans, trials, or public utilities.
GTmetrix
Provides meaningful free page testing, with paid limits for scale.
The site offers free start access and the API documentation says Basic/Free users receive five trial API credits: https://gtmetrix.com/api/docs/2.0/
Screpy
The official site provides several free standalone SEO tools, but they are separate tools and do not imply full platform access.
Screpy lists Website Analyzer, Google Rank Checker, SEO Report Generator, SERP Competitor Research, and Robots.txt Tester under Free SEO Tools: https://screpy.com/
Estimated customer scale
Market proof
Estimated customer or user scale based on public claims, with source claims stored separately for auditability.
GTmetrix
First-party figures indicate substantial adoption and enterprise reach.
GTmetrix's About page states 1,500,000+ registered users and 10,000+ enterprise accounts: https://gtmetrix.com/about.html
Screpy
Official site displays ten named trust logos, but provides no customer count or independently verifiable scale metric.
The homepage trust section names Uber, Philips, FedEx Express, Bosch, Champion, Iconfinder, T-Mobile, Carrefour, Stanley, and Skoda: https://screpy.com/
Agent readiness level
Automation
How ready the product is to operate as or inside an AI agent workflow, based on tracked subcriteria for autonomy, controls, integrations, memory, and evaluation.
GTmetrix
A current MCP server and REST API make testing agent-callable, but the product does not execute site fixes or retain business context.
GTmetrix's MCP can start tests, retrieve reports, analyze metrics, compare history, and recommend fixes; site remediation remains outside the product. https://gtmetrix.com/blog/gtmetrix-mcp/
Screpy
SEO MCP, REST API, AI-assistant integrations, and n8n provide meaningful agent connectivity, but the official material does not demonstrate broad end-to-end agent autonomy.
Screpy documents SEO MCP/API and integrations with ChatGPT, Claude, Perplexity, Gemini, Cursor, GitHub Copilot, and n8n: https://screpy.com/feature/seo-mcp/ and https://screpy.com/integrations/
Ease of use and autonomous level
Automation
How easy it is for a team to reach useful outcomes, and how much work the product can perform autonomously after setup.
GTmetrix
Agents can automate testing and analysis, but fixes still require external execution and API credits.
GTmetrix MCP supports chained testing, retrieval, comparisons, and recommendations; the same page says actions consume API credits and describes CI/CD integration rather than native site editing: https://gtmetrix.com/blog/gtmetrix-mcp/
Screpy
Quick Wins and AI-assisted workflows prioritize and draft work, while review and publishing control remain with users.
Quick Wins prioritizes next actions and the article generator requires review, editing, fact-checking, and publishing control: https://screpy.com/features/ and https://screpy.com/feature/ai-article-generator/