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Compare Simplex vs Conversion Century

Side-by-side comparison of features, pricing, services, ratings and more.

Simplex

B2B Lead Generation Website

Simplex is a global pioneer in SEO technology, using proprietary software and AI to automate page creation and drive organic growth. They help mid-market and enterprise businesses scale traffic, conversions, and revenue with data-driven strategies.

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Conversion Century

SEO & Organic Growth Website

Conversion Century is a full-service SEO agency based in Sofia, Bulgaria, specializing in white-hat SEO strategies to increase organic visibility and qualified traffic. With over 10 years of experience and 100+ projects yearly, they serve EU and US markets across 42+ industries.

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Feature Comparison

Attribute	Simplex	Conversion Century
Category	B2B Lead Generation	SEO & Organic Growth
Rating
Location	Sao Paulo, State of Sao Paulo, Brazil	Sofia, Bulgaria
Services	Advertising Display Ads PPC Content Marketing Content Strategy Data Analytics Data Science Data Visualization Marketing Advice Lead Generation Market Research SEO International SEO Local SEO SEO Consulting Technical SEO AI Search Optimization LLM optimization Copywriting APP Store Optimization Link Building Shopify SEO	Advertising Display Ads PPC Content Marketing Content Strategy Data Analytics Data Science Data Visualization Marketing Advice Lead Generation Market Research SEO International SEO Local SEO SEO Consulting Technical SEO AI Search Optimization LLM optimization Copywriting APP Store Optimization Link Building Shopify SEO
Industries	Architecture Ecommerce Fashion Retail Fintech Travel & Tourism	B2B Services Ecommerce Real Estate
Pros	Proprietary Indexa software automates SEO page creation at scale, reducing IT dependency. Proven track record with major brands like Leroy Merlin, Carrefour, and Sephora. Data-driven approach with AI and machine learning for sustained organic growth. Strong results: 2M monthly visits for Leroy Merlin Italy, 30% above average conversions.	Transparent reporting and collaborative partnership approach
Cons	Higher budget threshold (starting at $5,000) may not suit small businesses. Focus on mid-market and enterprise limits appeal for startups or local-only companies.	Limited public client reviews available for verification Budget range per project is relatively low, which may not appeal to large enterprises
Website	Visit Site	Visit Site

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