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Compare Closed:in vs datashake

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

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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Winner

datashake

B2B Lead Generation Website

'datashake is a Paris-based SEO and GEO agency that combines organic search optimization with paid acquisition to boost conversions and growth for SMEs and large groups. With over 500 clients, they offer a comprehensive two-step approach: audit and implementation.'

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Feature Comparison

Attribute	Closed:in	datashake
Category	Cold Email Outreach	B2B Lead Generation
Rating	-	Winner +4.5 higher
Location	Utrecht	Paris, Paris, Ile-de-France, France
Services	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 Data Analytics Data Visualization Marketing Advice Inbound Marketing Lead Generation SEO APP Store Optimization Backlink Management International SEO Link Building Local SEO Mobile SEO SEO Consulting Search Engine Marketing Shopify SEO Technical SEO Wordpress SEO Youtube SEO Social Media Marketing Content Creation Web Development UX Design	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 Data Analytics Data Visualization Marketing Advice Inbound Marketing Lead Generation SEO APP Store Optimization Backlink Management International SEO Link Building Local SEO Mobile SEO SEO Consulting Search Engine Marketing Shopify SEO Technical SEO Wordpress SEO Youtube SEO Social Media Marketing Content Creation Web Development UX Design
Industries	SaaS fintech recruitment agencies e-commerce financial services	B2B Services Ecommerce Fintech Health & Wellness Insurance
Pros	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	Comprehensive audit-to-implementation approach covering technical, semantic, and
Cons	No client reviews available on Clutch or G2 Small team (1-10 employees) may limit capacity for large-scale campaigns	Higher starting budget of $1,000 may not suit micro-businesses or very early-stage
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.

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