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Compare Z4 vs Zelst

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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Zelst

Zelst

Cold Email Outreach Website

Zelst is a highly experienced search marketing agency that helps clients to be seen and get found online. They achieve substantial return on marketing investment through creative and strategic search marketing.

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Feature Comparison

Attribute Z4 Zelst
Category SEO & Organic Growth Cold Email Outreach
Rating
Location Madrid, Community of Madrid, Spain Harrogate, England, United Kingdom
Services
  • AI Search Optimization
  • LLM optimization
  • SEO
  • SEO Consulting
  • Wordpress SEO
  • Web Development
  • Web Design
  • Website Maintenance
  • Wordpress Design
  • PPC
  • Content Marketing
  • Social Media Marketing
  • Email Marketing
  • Data Analytics
  • Marketing Automation
  • AI Search Optimization
  • LLM optimization
  • SEO
  • SEO Consulting
  • Wordpress SEO
  • Web Development
  • Web Design
  • Website Maintenance
  • Wordpress Design
  • PPC
  • Content Marketing
  • Social Media Marketing
  • Email Marketing
  • Data Analytics
  • Marketing Automation
Industries
Ecommerce Logistics Restaurants
B2B Services Ecommerce Fashion Retail Food & Beverages Health & Wellness
Pros
  • Offers a wide range of digital services from branding to AI, allowing clients to
  • Transparent, consultative approach with a focus on metrics that matter to the client.
Cons
  • No public pricing information, making budget estimation difficult without consultation.
  • Primary geographic focus on UK and US, less suited for companies targeting other
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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