ColdStack

ColdStack

ColdStack.co
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+

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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

ToneBird is a socially fluent AI reply assistant that understands your relationships, what you have already said, and where you left off, then drafts the next reply in your voice inside the apps you already use. It works alongside readable reply fields in Gmail, Slack, WhatsApp, iMessage, Discord, WeChat, Lark, X, and other apps, so users do not need to leave the conversation, rebuild context, or copy responses back and forth. ToneBird uses earlier conversations, commitments, preferred forms of address, and relevant facts to create replies that fit both the person and the situation. It can also bring in information from connected documents or knowledge bases, such as agreed prices, project details, or other terms. Users can compare three drafts, tweak the wording, insert the preferred option into the reply box, review it, and send it themselves.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

B2B companies

Audience

Professionals and everyday communicators wanting to draft context-aware replies in their own voice while preserving relationship history, relevant facts, and conversational continuity

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

No information available.
Free Version
Free Trial

Pricing

$9.90 per month
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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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
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

ColdStack.co
Founded: 2025
United States
www.coldstack.so/

Company Information

ToneBird
Founded: 2026
United States
tonebird.ai/

Alternatives

Alternatives

PrimaryHub

PrimaryHub

Voltic
Rubedo

Rubedo

Rubedo.ai

Categories

Categories

Integrations

Gmail
Slack
WhatsApp

Integrations

Gmail
Slack
WhatsApp
Claim ColdStack and update features and information
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