hrefStack vs Kalamos

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

hrefStack compared with Kalamos
Detail	hrefStack	Kalamos
What it does	AI agent that grows your search traffic through autonomous SEO content research, writing, publishing, and ranking tracking	LinkedIn posts that sound like you, not like AI
Stage	Startup	Not given
Founded	2024	Not given
Based in	Not given	Not given
Pricing model	Freemium	Free trial
Pricing	Free plan: 10,000 words per month, no credit card required. Starter plan: $45 per month for 100,000 words per month. Pro plan: $69 per month for unlimited words. All plans include AI images, CMS publishing, and AI Agent access. Yearly billing available with 17% savings.	$39 a month (launch price for first 100 seats), then $59, then $79. Team plan: $149 a month for 5 people, $29 per extra person. 7-day free trial with card required.
Key features	Autonomous keyword and competitor-gap research Publication-ready article writing with six-dimension quality self-audit Scheduled publishing to your CMS including WordPress, Shopify, Wix, Ghost, and Sanity Google ranking and AI-search citation tracking across ChatGPT, Perplexity, and Google AI Overviews Automatic refresh of underperforming content Content calendar planning Full editorial control with approval gates before publication 10 free SEO tools with no signup required	Voice profile learned from your own posts Interview-based fact gathering Six editorial checks before publishing Typeset cards and carousels Story Bank for facts and stories Commenter sorting by buyer type Approval queue for posts, replies and comments Integration with Claude, ChatGPT and Cursor Weekly review vs your usual posts Chrome extension
What makes it different	AI employee that executes the full content pipeline, not a writing assistant that produces drafts Optimization for both traditional search engines and AI-powered discovery surfaces like ChatGPT and Perplexity Grounded in your actual search data with full Search Console integration Multi-surface AI visibility tracking across rankings, AI Overviews, ChatGPT, and Perplexity citations	Drafts in your established voice instead of sounding generated Requires human approval for every post before publishing Facts checked and traced to sources or your Story Bank Learns from your own posts, not generic templates
Community votes	0	0
DR (Domain Rating by Ahrefs)	15 −1 (down) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	21	0
Citation Flow (Majestic)	27	13
Referring domains (Majestic)	91	2

5 details filled in for both companies.

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