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Compare C17 Lab vs Mastroke

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Winner

C17 Lab

Cold Email Outreach Website

C17 Lab is a B2B outbound growth agency that builds and scales automated sales engines using AI-powered workflows, cold email, and multi-channel outreach to generate qualified meetings and pipeline.

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Mastroke

Paid Advertising & PPC Website

Mastroke is a Shopify-dedicated agency with 10+ years of hands-on experience, serving 10,000+ merchants globally. As an AI-driven Shopify & Shopify Plus agency, they help B2C and B2B brands build, optimize, and scale high-performing eCommerce stores through a blend of human strategy and AI-powered execution.

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Feature Comparison

Attribute	C17 Lab	Mastroke
Category	Cold Email Outreach	Paid Advertising & PPC
Rating	Winner +0.5 higher
Location	San Francisco, California, USA	Torrance, California, United States
Services	AI-powered outbound sales systems Cold email campaigns and automation LinkedIn and multi-channel outreach Email infrastructure and deliverability setup Data-driven campaign optimization Outbound lead generation Inbound lead conversion RevOps and sales enablement Advertising PPC Shopify Development Conversion Rate Optimization SEO Performance Marketing Amazon Advertising	AI-powered outbound sales systems Cold email campaigns and automation LinkedIn and multi-channel outreach Email infrastructure and deliverability setup Data-driven campaign optimization Outbound lead generation Inbound lead conversion RevOps and sales enablement Advertising PPC Shopify Development Conversion Rate Optimization SEO Performance Marketing Amazon Advertising
Industries	SaaS E-commerce VC-backed startups Professional Services Manufacturing & Distribution B2B SaaS for Traditional Industries	Fashion Retail Health & Personal Care Home & Lifestyle Pet Supplies MedTech / SportsTech
Pros	Fast lead generation with high-quality, ICP-aligned prospects Tailored AI-powered campaigns that feel 1:1 Strong email deliverability and infrastructure setup Proven track record with case studies showing 400+ meetings in 90 days	Full-service capability from store setup and migrations to CRO, SEO, PPC, and Amazon
Cons	-	Geographic focus is primarily the US market, with limited presence in other regions
Website	Visit Site	Visit Site

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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

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