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Compare Closed:in vs Jellyfish

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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Jellyfish

Paid Advertising & PPC Website

Jellyfish is an integrated global digital marketing business and media-buying agency that helps brands plan, buy and optimize media across channels while uniting creative, data, cloud and CRM capabilities. As part of The Brandtech Group, it combines agency services with proprietary AI tools to improve speed, efficiency and effectiveness for mid-market and enterprise advertisers.

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Feature Comparison

Attribute	Closed:in	Jellyfish
Category	Cold Email Outreach	Paid Advertising & PPC
Rating	-	-
Location	Utrecht	London, United Kingdom
Features	Comprehensive training and enablement offering that helps clients build internal	Comprehensive training and enablement offering that helps clients build internal
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	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	SaaS fintech recruitment agencies e-commerce financial services	-
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	Global, hybrid working environment that offers flexibility and the ability to collaborate
Cons	No client reviews available on Clutch or G2 Small team (1-10 employees) may limit capacity for large-scale campaigns	Reports that proprietary internal tools and processes can add complexity or confusion
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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