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Sales Enablement · head to head

Koncert vs Mailshake

Koncert logo

Koncert

Sales Enablement

Four separate diallers, including agent-assisted calling, for outbound teams that live on the phone

From
On request
Rated
-
Full reviewWebsite
Mailshake logo

Mailshake

Sales Enablement

Email outreach and sales engagement software for cold email and multichannel sequences

From
$25/month
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Koncert pricing is not published; the pricing page shows placeholder numbers rather than real rates and directs you to sales, which makes it impossible to compare cost per seat against Orum or Nooks without entering a sales cycle.; Mailshake no free trial is offered, unlike some competing outreach tools.
  • They diverge on capability: Koncert covers AI Parallel Dialer, Mailshake covers Automated Email Sequences.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Koncert and Mailshake actually diverge.

Attributes where Koncert and Mailshake differ
AttributeKoncertMailshake
Starting priceOn request$25/month
Pricing modelquotesubscription
PlatformsWeb, APIweb
FoundedUnknown2015

Identical on both: free tier (No), user rating (Not yet rated), category (Sales Enablement).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Koncert

  • AI Parallel Dialer
  • AI Flow Dialer
  • Agent-Assisted Dialer
  • Click Dialer
  • Local presence
  • Caller ID health monitoring
  • Remote Coach
  • Remote Salesfloor

Only in Mailshake

  • Automated Email Sequences
  • Email Warmup & Verification
  • Data Finder
  • Unified Inbox
  • Power Phone Dialer
  • CRM Integrations
  • A/B Testing

What people use each for

The jobs each tool is most often brought in to do.

Koncert

  • A sales development team selling into enterprises where decision makers sit behind switchboards and a software dialler alone cannot reach themnot Mailshake
  • An outbound organisation whose numbers are being flagged as spam and which needs caller ID health monitoring and rotation as a managed capabilitynot Mailshake
  • A distributed sales team that has lost the ambient pressure of a shared calling floor and wants Remote Salesfloor to recreate itnot Mailshake
  • A team that wants to run different dialler modes for different segments, parallel for volume lists and click-to-call for named accountsnot Mailshake

Mailshake

  • Running cold email outreach campaigns for sales prospectingnot Koncert
  • Automating multi-step follow-up sequences with A/B testingnot Koncert
  • Finding and verifying prospect contact data before outreachnot Koncert
  • Combining email and phone dialing in one outbound workflownot Koncert
  • Managing agency client outreach across separate billing teamsnot Koncert

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Koncert

  • Pricing is not published; the pricing page shows placeholder numbers rather than real rates and directs you to sales, which makes it impossible to compare cost per seat against Orum or Nooks without entering a sales cycle.
  • Parallel dialling connects representatives so fast that they arrive on a live call with no time to recall prior context, and reviewers report this pushes reps onto a rigid script and degrades conversation quality even as dial volume rises.
  • Koncert supplies TCPA-supporting features but not legal cover, and parallel and agent-assisted dialling attract regulatory attention in several jurisdictions, so the compliance burden and any liability stay with your organisation.
  • Selling four dialler products rather than one means the capability you evaluated may not be the one you bought, and switching modes or mixing them across a team frequently involves renegotiating the contract.
  • The agent-assisted dialler bills for human labour rather than software seats, so its cost scales with call volume rather than headcount and can rise sharply during a campaign push in a way a per-seat budget does not anticipate.

Mailshake

  • No free trial is offered, unlike some competing outreach tools.
  • The phone dialer and larger data finder credit allotments are only available on the higher-priced Sales Engagement plan.
  • Pricing scales per user/email address, which can become costly for larger outbound teams.
  • CRM integrations (Salesforce, Pipedrive, HubSpot) are limited to the Email Outreach plan and above, unavailable on Starter.

Pricing, plan by plan

Koncert

On request
  • Koncert$undefined/year
    • AI Parallel Dialer
    • AI Flow Dialer
    • Agent-Assisted Dialer

Mailshake

$25/month
  • Starter$25/month
    • 1 email address per account
    • 1,500 email sends per month
    • Unlimited uploaded contacts and campaigns
  • Email Outreach$45/month
    • 2 email addresses per account
    • Unlimited email sends and campaigns
    • 50 free data finder credits
  • Sales Engagement$85/month
    • 10 email addresses per account
    • 2,500 free data finder credits
    • 5 phone numbers with unlimited North America dialer minutes
  • Agency$undefined/month
    • Unlimited email addresses
    • All Sales Engagement features
    • Custom pricing for agencies

Which should you pick?

Choose Koncert if

  • You need ai parallel dialer.
  • You work on Web, API.
  • You also want ai flow dialer.
Koncert review

Choose Mailshake if

  • You need automated email sequences.
  • You work on web.
  • You also want email warmup & verification.
Mailshake review

Questions people ask

Is Koncert or Mailshake better?
Neither clearly leads. Koncert starts at On request and Mailshake at $25/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Koncert or Mailshake?
Koncert starts at On request and Mailshake at $25/month.
Does Koncert or Mailshake run on more platforms?
Koncert runs on Web, API. Mailshake runs on web.
What is Koncert best used for?
Koncert is most often used for a sales development team selling into enterprises where decision makers sit behind switchboards and a software dialler alone cannot reach them, an outbound organisation whose numbers are being flagged as spam and which needs caller id health monitoring and rotation as a managed capability, a distributed sales team that has lost the ambient pressure of a shared calling floor and wants remote salesfloor to recreate it, a team that wants to run different dialler modes for different segments, parallel for volume lists and click-to-call for named accounts. Of those, a sales development team selling into enterprises where decision makers sit behind switchboards and a software dialler alone cannot reach them and an outbound organisation whose numbers are being flagged as spam and which needs caller id health monitoring and rotation as a managed capability are not what Mailshake is typically brought in for.
What can Koncert do that Mailshake cannot?
Koncert covers AI Parallel Dialer, AI Flow Dialer, Agent-Assisted Dialer, Click Dialer. Mailshake covers Automated Email Sequences, Email Warmup & Verification, Data Finder, Unified Inbox.

Answered from the vendors’ own pages

Koncert: What is Koncert previously called?

ConnectLeader. The company rebranded to Koncert while retaining the same dialler technology lineage.

Mailshake: How am I charged for Mailshake?

Billing is paid by the team and based on the number of users purchased. Each user allows one connected mail account, so a 3-user plan enables 3 connected mailboxes.

Source
Koncert: What is the agent-assisted dialler?

Human agents place calls and navigate gatekeepers, phone trees and receptionists, connecting your representative only when a live decision maker is on the line.

Mailshake: Is there a free trial for Mailshake?

No free trial is offered. Instead, Mailshake provides concierge onboarding, deliverability training, and support resources to new customers.

Source
Koncert: Is pricing published?

No. The pricing page shows placeholder figures and directs visitors to contact sales for a quote scoped by dialler type and seat count.

Mailshake: Can I cancel my Mailshake subscription at any time?

Yes, subscriptions can be cancelled at any time before the renewal date without additional charges, aside from any outstanding prorated costs.

Source
Koncert: Is parallel dialling legally safe?

Koncert provides TCPA-supporting features and holds SOC 2 Type II and GDPR compliance, but the calling organisation remains responsible for regulatory compliance in each jurisdiction it dials into.

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Related pages

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