ColdStack

ColdStack

ColdStack.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.

About

MunchReach is a cloud-based cold email outreach and sales engagement platform for agencies, sales teams, SaaS companies, recruiters, consultants, founders and other B2B service businesses. It lets users import and organize prospect records, build multi-step email sequences with scheduled follow-ups, connect their own mailboxes, and manage campaign replies in a unified inbox. The platform includes AI-assisted email personalization using customer-provided OpenAI or Claude credentials, mailbox warmup and health monitoring, CRM pipeline tools, tasks, analytics, workspaces, automations, integrations and a public API. Users can review personalized copy before sending, track campaign and reply activity, and coordinate prospects, conversations and follow-up work across teams. MunchReach supports outbound workflows from lead import through campaign execution, reply management and opportunity tracking.

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

agencies, lead gen, freelancers, growing teams

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Not Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Pricing

$39/month
The Starter plan costs $39/month, or $374.40/year with annual billing. The 14-day free trial costs $0 and includes 500 stored lead contacts, 300 total email sends, one workspace, one team member and one sending account.
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 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

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

MunchReach
Founded: 2026
United States
munchreach.com

Alternatives

Alternatives

Pipefire

Pipefire

M&B Marketing
PrimaryHub

PrimaryHub

Voltic
QuickMail

QuickMail

QuickMail.io

Categories

Cold Email Supported

Categories

Cold Email Supported
Email Warmup Supported

Integrations

Slack Supported
Calendly Not Supported
Claude Not Supported
Claude Duet Not Supported
Claude for Legal Not Supported
Gmail Supported
GoHighLevel Not Supported
Google Sheets Not Supported
HubSpot CRM Not Supported
Make Not Supported
OpenAI Not Supported
Zapier Not Supported

Integrations

Slack Supported
Calendly Supported
Claude Supported
Claude Duet Supported
Claude for Legal Supported
Gmail Not Supported
GoHighLevel Supported
Google Sheets Supported
HubSpot CRM Supported
Make Supported
OpenAI Supported
Zapier Supported
Claim ColdStack and update features and information
Claim ColdStack and update features and information
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Claim MunchReach and update features and information