Compare/Head to head

Smartlead vs Warmbly

Same facts, side by side: starting price, free tier, MCP, API and what each one is actually built for.

Starting price

Smartlead

$32/mo Free trial

Agency cold-email infrastructure with unlimited mailboxes, warmup and client-separated accounts, from $32/mo billed annually with a no-card trial.

Where Smartlead fits

  • Agencies sending for multiple clients
  • Teams that need many mailboxes
  • Desks that want MCP on campaign infrastructure
  • Buyers who will start on a no-card trial

Warmbly

$29/mo 14 day free trial

Open-source cold email platform that bundles warmup, unlimited mailboxes, a labelled reply inbox and a map-based local lead finder. Cloud plans price by daily sends from $29 a month with a 14-day free trial, and agencies that want to own the stack can self-host the whole thing free.

Where Warmbly fits

  • Staffing agencies giving each recruiter their own warmed mailbox
  • Teams that want unlimited mailboxes without per-inbox pricing
  • Agencies prospecting local small businesses by area
  • Technical teams that want to self-host cold email

At a glance

DetailSmartleadWarmbly
Starting price$32/mo$29/mo
Free tier–No–No
Free trialYes14 day free trial
MCP server✓Yes✓Yes
Public API✓Yes✓Yes
Listed underLead generation, OutreachOutreach, Deliverability, Lead generation

Where they pull apart

Smartlead

Stands out: Unlimited mailboxes plus separate client workspaces, with a hosted MCP.

Watch out: Email only: there is no LinkedIn channel and no finder in the same login.

Not the right fit for

  • Teams that need LinkedIn in the same sequencer
  • Buyers who want a finder in the same login

Warmbly

Stands out: It is the only full cold email platform in the directory whose sending, warmup and health rules are public code under Apache 2.0, so an agency can read why a mailbox was slowed or run the whole thing on its own server. Paid plans charge by daily send volume with unlimited mailboxes and no seat fees, and the built-in lead finder turns a drawn map area into named owners with checked addresses ready for a campaign.

Watch out: Self-hosting is free but its warmup only pairs the mailboxes on your own instance, with no shared pool and community-only support, so for deliverability the paid cloud is the real product. The Starter plan caps you at 150 cold emails a day, and the CRM, API and A/B tests start on the $89 Grow plan. The lead finder reads small business websites, so it suits local and SMB prospecting rather than finding hiring managers at larger companies.

Not the right fit for

  • Teams needing a large B2B contact database built in
  • Prospecting named decision makers at enterprise companies
  • Non-technical users wanting free deliverability from self-hosting

Pros and cons

Smartlead

  • Public Base plan from $32/mo
  • Unlimited mailboxes and client accounts
  • Trial with no card
  • Email only, no LinkedIn
  • No contact finder included
  • Higher plans sit close above the entry price

Warmbly

  • Open source, free to self-host
  • Unlimited mailboxes and warmup on paid plans
  • Map lead finder with checked emails
  • Self-hosted warmup has no shared pool
  • Starter capped at 150 emails a day
  • CRM and API start on $89 plan

What each one costs

Smartlead

$32/mo

Base is $32/mo billed annually, or $39 monthly, for 2,000 contacts and 6,000 email sends. Pro is $78/mo annually or $94 monthly, Unlimited Smart $144 or $174, and Unlimited Prime $315 or $379. Confirm current terms on the vendor site.

Checked 4 Nov 2026

Warmbly

$29/mo

Four plans priced by daily send volume, all with unlimited mailboxes, unlimited warmup, the unified inbox and analytics: Starter $29/mo (150 cold emails a day), Grow $89/mo (3,000 a day, adds the CRM, A/B variants, API and webhooks), Business $329/mo (15,000 a day, adds a dedicated sign-in address, team roles and audit log) and Enterprise on quote (15,000+ a day, SSO and custom contract). Paying yearly takes 20% off ($23, $71 and $263 a month). No per-seat charge. The 14-day free trial needs no card and allows two mailboxes and 20 cold emails a day. Self-hosting the whole platform is free, but its warmup only pairs your own mailboxes and support comes from the community. Confirm current terms on the vendor site.

Checked 8 Nov 2026

Common questions

Is Smartlead cheaper than Warmbly?
Warmbly starts lower, at $29/mo against $32/mo for Smartlead. That is the entry plan on each side, so the real number depends on seats and the tier you land on.
Can you try Smartlead or Warmbly for free?
Neither carries a free tier on our listing. Smartlead offers a free trial. Warmbly offers a 14 day free trial.
Does Smartlead or Warmbly have an MCP server?
Smartlead and Warmbly ship a first party MCP server, so an AI assistant can work the product directly.

Not the pair you wanted?

All Smartlead alternatives All Warmbly alternatives Every Lead generation tool

Editorial listings, never paid rankings. Prices checked 4 Nov 2026. Confirm current terms on the vendor site. Spot an error?