ColdStack vs. lemlist Comparison


ColdStack ColdStack.co	lemlist lempire	+	+
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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.	About Personalize cold emails, automate follow-ups, and engage with leads across all channels. lemlist is your sales automation and cold email software in one. From teams of 2 to 200+, lemlist solves every outreach automation challenge. Increase your reply rates by communicating with every prospect on a 1-on-1 level. Write custom intro lines and call-to-actions. Automatically put any screenshot, custom text, or company logos onto images in your emails. Add dynamic landing pages and embed videos. Launch powerful cold email sequences, send follow-ups that don't feel generic, and open more opportunities for your business. Close more deals by engaging with your leads across multiple channels on autopilot. Add cold calls and dial prospects with one click. Include custom tasks and social selling. Sync seamlessly with your team and quickly see at what stage a specific lead is in.
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	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
Audience B2B companies	Audience Sales teams that need an effective personalized cold email solution
Support Phone Support Not Supported 24/7 Live Support Not Supported Online Not Supported	Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported
API Offers API Not Supported	API Offers API Not Supported
Screenshots and Videos No images available	Screenshots and Videos View more images or videos
Pricing No information available. Free Version Not Supported Free Trial Not Supported	Pricing $29 per month Free Version Not Supported Free Trial Supported
Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software	Reviews/Ratings Overall 4.0 / 5 ease 3.0 / 5 features 5.0 / 5 design 4.0 / 5 support 5.0 / 5 Read all reviews
	Pros & Cons from Real Users Pros Such a unique way to create content that inspires users in emails and other ways. I like the customizability. Cons I had a difficult time implementing it as it's very unique.
Training Documentation Not Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported
Company Information ColdStack.co Founded: 2025 United States www.coldstack.so/	Company Information lempire Founded: 2018 France lemlist.com
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Categories Cold Email Supported	Categories AI Sales Assistants Supported AI Sales Tools Supported AI SDR Supported Cold Email Supported Email Marketing Supported Email Personalization Supported Lead Generation Supported Mail Merge Supported Sales Engagement Supported
	Show More Features Email Marketing Features A/B Testing Supported Artificial Intelligence Not Supported Auto-Responders Not Supported CAN SPAM Compliance Supported Customer Surveys Not Supported Drip Campaigns Supported Dynamic Content Supported Event Triggered Email Supported Image Library Supported Landing Pages/Web Forms Not Supported Mailing List Management Not Supported Mobile Optimized Emails Not Supported Reporting/Analytics Supported Subscriber Management Not Supported Template Management Supported WYSIWYG Email Editor Supported
Integrations Gmail Supported Slack Supported Dropcontact Not Supported FirstQuadrant Not Supported Google Drive Not Supported HubSpot CRM Not Supported KonnectzIT Not Supported Make Not Supported Motileo Not Supported Pitchsail Not Supported PureMail Not Supported Shortlists Not Supported Tapistro Not Supported Trello Not Supported UpLead Not Supported WiserNotify Not Supported Workers by Delos Not Supported Zapier Not Supported lemcal Not Supported lemwarm Not Supported Show More Integrations View All 2 Integrations	Integrations Gmail Supported Slack Supported Dropcontact Supported FirstQuadrant Supported Google Drive Supported HubSpot CRM Supported KonnectzIT Supported Make Supported Motileo Supported Pitchsail Supported PureMail Supported Shortlists Supported Tapistro Supported Trello Supported UpLead Supported WiserNotify Supported Workers by Delos Supported Zapier Supported lemcal Supported lemwarm Supported Show More Integrations View All 92 Integrations
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