ColdStackColdStack.co
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About
Stop losing deals in the 2-hour window between lead reply and your response. ColdStack brings every cold email reply from Instantly, Smartlead, and EmailBison into a single Slack channel where your team can see and act instantly.
Each reply triggers a real-time notification with full engagement context—who opened what, when, and how many times. Your team replies directly from Slack, and ColdStack syncs everything back bidirectionally to your source platform. No more toggling between dashboards, Gmail, and Slack.
Built for cold email agencies and sales teams who live in Slack. Mobile-ready through Slack's app.
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About
Generate 1000s of personalized emails that get you 8x more replies within minutes using AI. Never waste time researching or writing 'personalized' emails again. Automate your entire outreach process. 40x faster and 6x cheaper than humans. We automate your entire research and copywriting process in seconds so you can send emails that convert in 1 click. We find and use your prospect's online data to create punchy personalized cold emails for sales or backlinks at scale. Our personalized messages are built with proven conversion systems that convince your prospects to take action. We find unique points from your prospect's LinkedIn bio, job profile, or posts & create a complimenting personalized message. We use your prospects' case studies, awards, news articles, or blogs to create wallet-opening emails. Floor your CRM with leads by communicating with each prospect on a personal level. Create tailored emails based on your prospect's recent online activity.
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
B2B companies
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Audience
Content creators, companies, and copywriters seeking a tool to generate personalized emails using AI
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Not Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Supported
Online
Supported
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API
Offers API
Not Supported
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API
Offers API
Not Supported
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Screenshots and VideosNo images available
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Screenshots and Videos |
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Pricing
No information available.
Free Version
Not Supported
Free Trial
Not Supported
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Pricing
$49 per month
Free Version
Not Supported
Free Trial
Supported
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Reviews/
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Reviews/
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Training
Documentation
Not Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationColdStack.co
Founded: 2025
United States
www.coldstack.so/
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Company InformationSmartWriter
United States
www.smartwriter.ai/
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Categories |
Categories |
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Integrations
Facebook
Not Supported
Gmail
Supported
Google
Not Supported
LinkedIn
Not Supported
Slack
Supported
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Integrations
Facebook
Supported
Gmail
Not Supported
Google
Supported
LinkedIn
Supported
Slack
Not Supported
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