Compare Big Rock vs Bubble SEO

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

Big Rock

Cold Email Outreach Website

Big Rock is a London digital performance agency founded in 2011 that combines data science and creative production to accelerate marketing performance for UK businesses. The agency works with scale-up fintechs and global brands, delivering services across SEO, PPC, content, email, and social media.

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Winner

Bubble SEO

Content & Copywriting Website

Founded in 2021, Bubble SEO (formerly AI Guest Posts) provides high-quality guest posting and link building services to help clients expand online presence, improve SEO, and boost ROI. The agency focuses on quality, efficiency, and tailored solutions leveraging an extensive network and industry expertise.

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Feature Comparison

Attribute	Big Rock	Bubble SEO
Category	Cold Email Outreach	Content & Copywriting
Rating		Winner +0.5 higher
Location	London, United Kingdom	Burton upon Trent, United Kingdom
Services	Digital Marketing Content Marketing PPC Social Media Marketing SEO Email Marketing Digital Advertising SEM	Digital Marketing Content Marketing PPC Social Media Marketing SEO Email Marketing Digital Advertising SEM
Industries	Media & Communications Retail Consumer Goods Corporate Services	Media & Communications Corporate Services eCommerce Home & Garden Health Care Luxury Crypto Construction Beauty Finance
Pros	Award-winning in-house creative production team (Pebble Studios) Data-driven analytical approach focused on increasing client revenue Track record with major brands including ClearScore, Direct Line, Aon, and Nuapay	Highly responsive and accommodating team Goes the extra mile to meet client goals Helps find suitable publications for guest posts
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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