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Compare Mastroke vs Closed:in

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

Winner

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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Closed:in

Cold Email Outreach Website

Closed:in is a cold-email specialist and Clay/Instantly partner building hyper-personalized outbound systems that book meetings and generate pipeline. They use Clay-powered outbound campaigns for B2B service companies to deliver sales calls within 2-3 weeks.

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Feature Comparison

Attribute	Mastroke	Closed:in
Category	Paid Advertising & PPC	Cold Email Outreach
Rating	Winner +4.5 higher	-
Location	Torrance, California, United States	Utrecht
Services	Advertising PPC Shopify Development Conversion Rate Optimization SEO Performance Marketing Amazon Advertising Cold email campaign design & ops Prospect sourcing & enrichment (Clay stacks) Deliverability engineering & inbox landing Reply qualification workflows & appointment setting Template + sequence personalization at scale	Advertising PPC Shopify Development Conversion Rate Optimization SEO Performance Marketing Amazon Advertising Cold email campaign design & ops Prospect sourcing & enrichment (Clay stacks) Deliverability engineering & inbox landing Reply qualification workflows & appointment setting Template + sequence personalization at scale
Industries	Fashion Retail Health & Personal Care Home & Lifestyle Pet Supplies MedTech / SportsTech	SaaS fintech recruitment agencies e-commerce financial services
Pros	Full-service capability from store setup and migrations to CRO, SEO, PPC, and Amazon	High reply rates on top campaigns (claimed 50%+) Quick pipeline generation (e.g., $190K in 60 days) Official Clay Solutions Partner and Certified Instantly Expert End-to-end automation using Clay and Instantly Trusted by 50+ B2B companies
Cons	Geographic focus is primarily the US market, with limited presence in other regions	No client reviews available on Clutch or G2 Small team (1-10 employees) may limit capacity for large-scale campaigns
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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