Every reply. Every client. One place

What is a missed reply worth?

Your current tools are sending at scale but they’re missing replies.
Master Inbox catches what they don’t, so you never lose a lead again.
Growth
Budding Agencies

$349

/ month
Just Getting Started
1500 Mailboxes
10 Workspaces
Warm up auto sync
AI Labeling
Agency
Established Agencies 

$579

/ month
Everything in Growth +
3000 Mailboxes
30 Workspaces
Hey Reach Integration
Expandi Integration
Aimfox Integration
AI Reply agents*
Unlimited 30k
LIMITED TIME ONLY

$

1497

/ month*
Add ons Included:
Everything in Agency +
Hubspot integration
API Access
Unlimited Webhooks
Case studies

The Biggest agencies rely
on Master Inbox everyday

Three teams. Three setups. Same outcome — zero missed replies.
"Master Inbox helped us cut our response-handling team by more than half while enabling each rep to handle five times the workload. Quality improved, response times got faster, and we’re never going back."
Nick Verity
CEO of Cleverly
View full case study
“Master Inbox delivers exactly what they promise: we’re capturing all of our replies, and their team has replaced fragile API workarounds with reliable integrations we no longer have to worry about. We absolutely endorse them.”
Eric Nowoslawski
Founder Growth Engine X
View full case study
“Reply management was our number-one reason for client churn. Once we embedded Master Inbox into our portal and workflow, everything changed clients stopped complaining, churn dropped, and they could finally manage leads at scale.”
Nick Abraham
ounder of LeadBird
View full case study

FAQs

Have a question? We’re here to help.

Sequencers often miss replies or lose thread context. Master Inbox consolidates every reply email + LinkedIn into a single “Master Thread,” so no deal opportunity slips away.

With AI auto-labeling (Lead, Demo, Objection, Interested etc) and reminders, reps instantly see priority replies, improving speed to lead and conversion rates.

Master Inbox is the only solution that gives you master threads which is a complete context window on a prospects conversation journey with you across multiple campaigns and subjects lines, it all lives in one view!

You can run campaigns on SmartLead or Bison, Instantly or Luella, Heyreach, Expandi or Aimfox, all replies show up in one centralized master inbox for your clients! Manage multiple clients using workspaces, control access using member controls and show only positive replies, or route specific ones to clients mailbox of choice!

Master Inbox pushes replies, thread context, and labels into HubSpot using our integration, we support a deeper attribution based integration through our partnership with OutboundSync, which also supports Salesforce!

Yes. Master Inbox supports both Email Bison and HeyReach simultaneously, allowing you to manage email and LinkedIn replies in one unified workspace.

Yes. You can filter by channel and create custom views to manage email and LinkedIn conversations separately while keeping them in one system.

Master Inbox displays new replies in real time inside the unified workspace and can trigger instant Slack notifications for important or high-intent responses.

Yes. AI labeling and manual labels can be applied consistently across both email and LinkedIn conversations.

Yes. Reply Agents can operate across selected channels, allowing automated or draft responses for both email and LinkedIn replies.

Yes. Master Inbox continuously syncs replies from connected Email Bison and HeyReach accounts and displays them instantly as they arrive.

Agencies using Master Inbox avoid lost leads, respond faster, and close more deals, one client credited us with helping close $260k+ in revenue by capturing replies they’d otherwise miss.

Still have questions?

Can’t find the answer you’re looking for? Please get in touch.

Unify replies. Scale your revenue. Close more deals.

Master Inbox helps agencies and sales teams handle high volumes of replies without dropping the ball.
 The inbox built for outbound at scale.