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Compare Z4 vs ROI Amplified

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

Z4

Z4

SEO & Organic Growth Website

Z4 is a Spanish digital agency combining advanced technology with marketing strategies. They specialize in technical SEO, web performance optimization, cybersecurity, and custom web development. With over 15 years of experience, they serve small to enterprise businesses across Spain.

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ROI Amplified

ROI Amplified

Cold Email Outreach Website

ROI Amplified is a retainer-based full-service digital marketing agency offering Google Ads, SEO, social media, HubSpot management, website design, and email marketing. They have managed over $100 million in ad spend and generated $1 billion+ in sales for clients across healthcare, legal, real estate, e-commerce, and professional services.

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Feature Comparison

Attribute Z4 ROI Amplified
Category SEO & Organic Growth Cold Email Outreach
Rating
Location Madrid, Community of Madrid, Spain Tampa, Florida
Services
  • AI Search Optimization
  • LLM optimization
  • SEO
  • SEO Consulting
  • Wordpress SEO
  • Web Development
  • Web Design
  • Website Maintenance
  • Wordpress Design
  • Google Ads & PPC Management
  • Social Media Advertising & Strategy
  • SEO & Local SEO
  • HubSpot Management & CRM Implementation
  • Website Design & Development
  • Email Marketing & Automation
  • Display Ads
  • Retargeting and Remarketing
  • Marketing Automation
  • Search Engine Marketing
  • WordPress SEO
  • AI Search Optimization
  • LLM optimization
  • SEO
  • SEO Consulting
  • Wordpress SEO
  • Web Development
  • Web Design
  • Website Maintenance
  • Wordpress Design
  • Google Ads & PPC Management
  • Social Media Advertising & Strategy
  • SEO & Local SEO
  • HubSpot Management & CRM Implementation
  • Website Design & Development
  • Email Marketing & Automation
  • Display Ads
  • Retargeting and Remarketing
  • Marketing Automation
  • Search Engine Marketing
  • WordPress SEO
Industries
Ecommerce Logistics Restaurants
B2B Services Ecommerce Manufacturing Healthcare Legal Real Estate Professional Services
Pros
  • Offers a wide range of digital services from branding to AI, allowing clients to
  • Transparent, data-driven approach with no long-term contracts and full reporting.
  • HubSpot and Adobe Marketo partners, enabling enterprise-level marketing automation.
  • In-house team of certified experts across all digital marketing channels.
Cons
  • No public pricing information, making budget estimation difficult without consultation.
  • Small team (1-9 employees) may limit capacity for very large or simultaneous projects.
  • Retainer-based pricing may not suit businesses looking for one-off or project-based
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Free Plan Available

You shouldn’t have to overpay for cold email tools. With Mystrika, you won’t.

It does cold email warmup, sequences, unified inbox, and AI writing - all in one place. Every other tool that does this charges somewhere between $100 and $500 a month. Mystrika has a free plan. 500 prospects. No expiry. No card.

The people who consistently book meetings from cold email aren’t smarter. They just stopped leaving money on the table.

See the Free Plan