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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.
Relixir
Strong research capability for high-intent GEO opportunities, but the page does not expose methodology or deliverables in detail.
The page explicitly lists a deep research engine, competitor and keyword gap analysis, social-media insight mining, and large-scale web research: https://www.relixir.ai/rex
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.
Relixir
Rex researches GEO topics and opportunities, but the official page does not establish a conventional keyword volume and difficulty database.
The official Rex page describes autonomous GEO research and execution: https://www.relixir.ai/rex
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.
Relixir
End-to-end automated content generation, publishing, and recurring refreshes are explicitly described.
The page describes GEO content generation, autonomous publishing, JSON-LD/semantic structure, citations, and 30–60 day CMS refresh cycles: https://www.relixir.ai/rex
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.
Relixir
The product claims broad competitor, keyword, social, web, marketing-stack, and LLM context gathering.
The page lists competitor and keyword gaps, social insights, large-scale web research, stack connections, and LLM response extraction: https://www.relixir.ai/rex
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.
Relixir
AI-search/GEO is the core product positioning across major LLMs and Google AI Overviews.
Rex is positioned to improve recommendations and citations across Google AI Overviews, ChatGPT, Perplexity, and Claude: https://www.relixir.ai/rex
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.
Relixir
High GEO readiness through monitoring, citation optimization, structured content, and authority workflows.
The page lists citation optimization, AI retrieval structures, citation tracking, domain-authority scoring, and strategic link building: https://www.relixir.ai/rex
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.
Relixir
Technical SEO is supported through audits and site-health actions, though implementation depth is unspecified.
Rex is said to crawl sites, fix broken links, optimize meta tags, improve Core Web Vitals, and monitor site health: https://www.relixir.ai/rex
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.
Relixir
Autonomous publishing and CMS refresh workflows are explicitly part of deployment.
The page says Rex publishes GEO-optimized content 24/7 and refreshes CMS content on 30–60 day cycles: https://www.relixir.ai/rex
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.
Relixir
Rich AI-search measurement is described, including visibility, citations, competitors, traffic, and leads; exact attribution setup is not stated.
The AI Search Analytics Dashboard lists mention rate, citation rate, competitor share of voice, AI traffic, and AI-sourced leads: https://www.relixir.ai/rex
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.
Relixir
Weak evidence only: Slack is listed as an integration and Relixir provides ongoing support; collaborative workflows are not detailed.
The page lists Slack among one-click integrations and dedicated onboarding/ongoing support, but no roles, comments, or approval workflow: https://www.relixir.ai/rex
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.
Relixir
A managed custom deployment may suit funded B2B teams, but public affordability cannot be assessed.
The only published plan is Custom Pricing with a demo CTA; no public lower-cost tier is shown: https://www.relixir.ai/rex
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.
Relixir
No free plan, free tool, or free trial is documented on the supplied product page.
The pricing section shows only Custom Pricing and Book a Demo, with no free access offer: https://www.relixir.ai/rex
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.
Relixir
The page provides a meaningful but self-reported adoption signal; no independently verifiable customer total is supplied.
Relixir states Rex is trusted by 400+ fastest-growing B2B teams and references 1,200 production GEO workflows: https://www.relixir.ai/rex
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.
Relixir
Rex is explicitly marketed as an autonomous employee running expert GEO workflows 24/7.
The page says Rex runs autonomously, works 24/7, optimizes experimentation, learns from publishing/ranking signals, and refines evaluation criteria: https://www.relixir.ai/rex
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.
Relixir
The onboarding promise is unusually low-friction: connect the stack, define goals, and let Rex run without configuration.
The page says no setup steps or configuration are needed and describes connect, define goals, and autonomous execution: https://www.relixir.ai/rex
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/