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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.
Frase
Broad first-party research and competitor context feeds content creation.
The homepage says Frase runs live SERP and competitor analysis and digs through the market before drafting. https://www.frase.io/
SEOptimer
Useful keyword, backlink and competitor lookups, but primarily an audit/reporting product rather than a deep research suite.
The audit includes ranking keywords, estimated volume/traffic and backlink summaries; the pricing page lists 25/100/250 keyword searches and 25/50/150 backlink lookups: https://www.seoptimer.com/seo-audit/ https://www.seoptimer.com/pricing/
Keyword research quality for SEO content
Discovery
How well the tool identifies, qualifies, clusters, and prioritizes keywords specifically for SEO content creation.
Frase
Strong SERP-grounded topic and content research, but the reviewed pages do not document a dedicated keyword database workflow.
Frase says it studies what ranks for a topic and provides research-backed briefs. https://www.frase.io/pricing
SEOptimer
Provides basic keyword discovery, volume, competition/CPC and rank data; no evidence of advanced clustering or large-scale competitive keyword intelligence.
The official product description says keyword research finds opportunities using search volume, competition and CPC data: https://www.seoptimer.com/
Content execution
Execution
How well the tool helps produce, optimize, or operationalize SEO content.
Frase
Generates on-brand finished drafts, images, and revisions.
The agent page states Frase researches a query, drafts the page and images in brand voice, and scores fixes. https://www.frase.io/features/agent
SEOptimer
Actionable prioritized audit recommendations and acquired GrowthBar content-writing capability are present, but SEOptimer itself shows limited native publishing/execution.
Audit reports provide prioritized recommendations, while the homepage labels AI SEO Writing as a tool in its suite: https://www.seoptimer.com/seo-audit/ https://www.seoptimer.com/
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.
Frase
Carries brand, competitor, first-party visitor-question, and published-site context through the loop.
The homepage describes learning the brand, competitor picture, and questions visitors ask via Frase Answers. https://www.frase.io/
SEOptimer
Can add target keywords and competitors and use site/backlink/ranking context; limited evidence of internal business or third-party context ingestion.
The audit page lists Add Competitors and Target Keywords; API supports prospect and trend analysis: https://www.seoptimer.com/seo-audit/ https://www.seoptimer.com/seo-api/
AI-search / GEO
Visibility
How directly the tool helps teams improve visibility in AI answer engines and citation-oriented search journeys.
Frase
AI-visibility monitoring and GEO scoring are core capabilities.
The pricing page includes AI Visibility and the homepage describes monitoring citations across ChatGPT, Perplexity, Claude, Gemini, and Google AI. https://www.frase.io/pricing
SEOptimer
Dedicated GEO audit measures AI-platform visibility, citations, accessibility and LLM-oriented content factors.
GEO Audit covers ChatGPT, Gemini, Claude and Perplexity, prompt visibility, LLM accessibility/content analysis and AI Overview rankings: https://www.seoptimer.com/geo-audit/
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.
Frase
Provides GEO scores, citation tracking, and AI-search fixes in the publishing loop.
Frase’s homepage says drafts are scored for SEO and GEO and that AI citations are monitored after publishing. https://www.frase.io/
SEOptimer
Strong diagnostic readiness for AI crawlers and citations, but recommendations are audits rather than autonomous optimization.
Checks include robots.txt, llms.txt, sitemaps, noindex, rendered content, identity schema, citability and AI citations: https://www.seoptimer.com/geo-audit/
Technical SEO
Diagnostics
How strong the tool is for crawling, audits, indexability, metadata, status codes, and technical site health.
Frase
Site auditing and page-level SEO readiness are present, but the reviewed first-party material does not establish a full technical crawler suite.
The homepage says Frase crawls a site page by page, scores SEO and AI readiness, and ranks fixes by impact. https://www.frase.io/
SEOptimer
Broad technical audit and crawler coverage including performance, indexing, rendering, structured data and security signals.
Official audit coverage lists Core Web Vitals, PageSpeed, robots, sitemaps, canonical/noindex, JS errors, HTTP2, schema and many technical checks: https://www.seoptimer.com/seo-audit/ https://www.seoptimer.com/seo-api/
Publishing workflow
Operations
How well the tool moves work into CMS, publishing, approvals, or automated production workflows.
Frase
Direct CMS publishing and hosted FraseCMS are supported.
The pricing page lists one-click publishing to WordPress, Webflow, Sanity, Wix, or FraseCMS. https://www.frase.io/pricing
SEOptimer
Reports and lead forms are outputs, not CMS publishing, editorial approval, or content deployment workflows.
Official pricing covers reports, scheduling, and embeddable lead forms without direct website publishing: https://www.seoptimer.com/pricing/
Measurement & tracking
Measurement
How well the tool monitors rankings, content performance, visibility, or ongoing SEO progress.
Frase
Tracks Google rankings, AI citations, AI visibility, and decay.
The homepage explicitly lists ranking tracking, AI-citation monitoring, and Content Guard decay detection. https://www.frase.io/
SEOptimer
Keyword rank tracking, backlink monitoring, scheduled reporting and API trend workflows provide solid measurement.
Pricing lists Google/Bing/mobile tracking, rank limits, backlink changes dashboard and email alerts; API supports regular reporting and trend analysis: https://www.seoptimer.com/pricing/ https://www.seoptimer.com/seo-api/
Team collaboration
Operations
How well the tool fits multi-person workflows, agencies, approvals, handoffs, and repeatable processes.
Frase
Team seats, calendars, reports, and enterprise controls support collaboration.
Pricing lists multiple seats, a content calendar, client-ready exports, white-label reports, portals, SSO/SAML, and an account manager. https://www.frase.io/pricing
SEOptimer
Multi-user plans, white-label templates and lead workflows support agencies, though collaboration controls are fairly basic.
White Label supports 3 users and Lead Generation 6 users, with report templates and branding: https://www.seoptimer.com/pricing/
Value accessibility
Buying
How easy it is for a team to reach value relative to pricing, setup complexity, and required expertise.
Frase
Self-serve plans begin at a public price with a no-card trial, though meaningful scale is paid.
The homepage says self-serve from day one and the pricing page publishes Starter at $39/month yearly with a 7-day no-card trial. https://www.frase.io/pricing
SEOptimer
Low entry price, full-feature 14-day trial and annual discount make the core product accessible.
Pricing starts at $29/month and says the 14-day trial has full paid-plan access; annual billing is described as 25% off: https://www.seoptimer.com/pricing/
Free tools
Buying
How useful the tool is before payment through free tools, free plans, trials, or public utilities.
Frase
A free trial and free FraseCMS hosting are available, but the core product is not a permanently free plan.
The pricing page documents a 7-day trial and FraseCMS Free at $0 with 100,000 page views/month. https://www.frase.io/pricing
SEOptimer
Public free URL analysis and 14-day full-feature trial are meaningful free access, but there is no evidence of a permanent free plan.
Homepage offers a free website analysis; pricing says anyone can use SEOptimer free for 14 days with full feature access: https://www.seoptimer.com/ https://www.seoptimer.com/pricing/
Estimated customer scale
Market proof
Estimated customer or user scale based on public claims, with source claims stored separately for auditability.
Frase
First-party positioning indicates thousands of teams, but no exact customer count is supplied.
The pricing page says “Thousands of teams already run on Frase.” https://www.frase.io/pricing
SEOptimer
Official materials show substantial usage signals but conflicting counts, so scale is supported only at low confidence.
Homepage claims 90,000+ users worldwide, while About says 2,000 customers and 350+ G2 reviews: https://www.seoptimer.com/ https://www.seoptimer.com/about/
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.
Frase
The product has a named AI SEO Agent with natural-language workflows, API, and automation hooks.
The agent page describes research, briefs, drafts, scores, clustering, repurposing, and publishing in one chat; the API page describes REST API and webhooks. https://www.frase.io/features/agent https://www.frase.io/features/api-integrations
SEOptimer
API, callbacks and JSON make automation possible, but no autonomous agent or tool-use loop is documented.
API supports JSON submission/retrieval, callback or queue-and-wait, and SaaS/CRM integration; these are automation primitives, not an agent: https://www.seoptimer.com/seo-api/
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.
Frase
Autonomous publishing and approval-based Content Guard fixes are explicit, with customer rules controlling what goes live.
The agent page says publishing occurs on approval and Content Guard proposes fixes for approval; pricing says the agent can publish on its own when enabled. https://www.frase.io/features/agent https://www.frase.io/pricing
SEOptimer
Fast audits, prioritized recommendations and scheduled/API workflows reduce manual work, but execution remains user-controlled.
Product audits in under a minute and supplies prioritized recommendations; API supports queued/callback workflows and scheduled reports: https://www.seoptimer.com/about/ https://www.seoptimer.com/seo-audit/ https://www.seoptimer.com/seo-api/