Compare/Head to head

Instantly vs Mailscale

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

Starting price

Instantly

$37.60/mo Free trial

Cold-email infra for teams farming many sending mailboxes. Outreach Growth is $37.60/mo billed yearly, or $47/mo monthly.

Where Instantly fits

  • Outbound recruiting teams sending at volume
  • Agencies running many sending accounts
  • Desks that need warmup plus a unibox
  • Recruiters who want an agent to find candidates and send first outreach

Mailscale

Sales-quoted

Mailscale now leads with agentic B2B cold email, pre-warmed mailboxes, and a 400 million contact file. Public rates are not printed. Plans are built on a sales call.

Where Mailscale fits

  • B2B teams that want mailboxes plus an outbound agent in one vendor
  • Desks that need pre-warmed domains instead of a two-week warmup
  • Staffing and sales teams that already close and lack prospecting time
  • Buyers comparing mailbox infrastructure against Instantly or Smartlead

At a glance

DetailInstantlyMailscale
Starting price$37.60/moSales-quoted
Free tier–No–No
Free trialYesNot on record
MCP server✓Yes–No
Public API✓Yes–No
Listed underOutreachDeliverability

Where they pull apart

Instantly

Stands out: Warmup, unibox, and volume send with hosted MCP and a public API, plus an AI Recruiting Agent that finds candidates from a job link and emails them.

Watch out: Deliverability still depends on your domains and inboxes, not the tool alone.

Not the right fit for

  • Teams that only need LinkedIn messaging
  • Buyers looking for an ATS

Mailscale

Stands out: The live homepage sells an autonomous outbound agent that writes 125 email variants and reroutes sends when inbox placement drops, on top of mailbox provisioning.

Watch out: The vendor does not publish a rate card. The homepage tells you to get a custom plan on a call, so there is no self-serve pricing.

Not the right fit for

  • Teams that need a published per-inbox rate before talking to sales
  • In-house recruiters who only need an ATS, not outbound email

Pros and cons

Instantly

  • Warmup and unibox in the same desk
  • AI Recruiting Agent sources candidates and drafts outreach from a job link
  • Hosted MCP plus REST API
  • No-card get-started path on the vendor site
  • Sending domains and inboxes are bought separately
  • Sequence designer is plainer than multichannel rivals
  • Volume tiers step up quickly as mailboxes grow

Mailscale

  • Pre-warmed mailboxes so you skip the two-week warmup
  • Help centre still covers mailbox, domain, and billing operations
  • Agentic copy, list building, and reply handling in the same product
  • No public rate card
  • Pricing is a sales call, not self-serve checkout
  • Shared mailbox infrastructure is a deliverability variable you do not control

What each one costs

Instantly

$37.60/mo

Outreach plans: Growth $37.60/mo billed yearly, or $47 monthly, for 5,000 emails and 1,000 contacts; Hypergrowth $85.58/mo yearly, or $107 monthly, for 125,000 emails and 25,000 contacts; and Light Speed $286.30/mo yearly, or $358 monthly, for 500,000 emails. Lead credits are a separate plan from $47/mo, and bundles of both start at $94/mo. Every plan has unlimited email accounts and warmup. Confirm current terms on the vendor site.

Checked 4 Nov 2026

Mailscale

Sales-quoted

The vendor does not publish a rate card. The homepage says an outbound specialist builds your plan and pricing on a call. Help-centre docs still cover mailbox and domain billing. Treat current commercial terms as sales-quoted. Confirm current terms on the vendor site.

Checked 4 Nov 2026

Common questions

Can you try Instantly or Mailscale for free?
Neither carries a free tier on our listing. Instantly offers a free trial.
Does Instantly or Mailscale have an MCP server?
Instantly ships a first party MCP server, so an AI assistant can work the product directly.

Not the pair you wanted?

All Instantly alternatives All Mailscale alternatives Every Outreach tool

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