Software profile

Instantly

A cold email platform with unlimited sending accounts and warm-up, from $47 a month (Growth) or $37.60 billed annually.

  • Free trial
  • By contacts and sends
  • Cloud
  • Unlimited mailboxes
  • Independent sources

by InstantlySales Engagement SoftwareCold email outreach platform

  • Verified 10 Nov 2026Sources are dated on this profile
  • 1 sourceLinked, typed and dated
  • Independent third-party sourcesHow this profile was compiled
  • Not an endorsementStack18 has not tested this product
Quick answer

What is Instantly?

Instantly is a cold email platform that lets teams connect unlimited sending mailboxes with automated warm-up, priced by uploaded contacts and monthly sends, plus credits for its lead database.

  • Best forHigh-volume cold emailers and agencies using many mailboxes
  • Team size fitSmall teams, Mid-size teams
  • PricingGrowth $47 a month ($37.60 annual); Hypergrowth $97; Light Speed $358.
  • Main limitationLead data requires separate credit plans.
  • AlternativesSmartlead, lemlist, Woodpecker, Reply.io · compare all
Overview

Instantly overview: who it is for and what it does.

Instantly is a popular cold email tool built around unlimited connected mailboxes and warm-up, so teams can spread volume across many inboxes.

A September 2026 guide from a competing vendor lists Outreach plans: Growth $47 a month (1,000 contacts, 5,000 emails), Hypergrowth $97 (25,000 contacts, 100,000 emails) and Light Speed $358 (100,000 contacts, 500,000 emails), about 20% less on annual billing.

Lead database and AI features use separate credit plans from $47 a month. A 14-day trial includes 2 accounts, 250 leads and 1,000 sends.

Main problem it solves

Lets teams send cold email at volume without per-mailbox fees.

Typical customer segment

Founders, agencies and outbound teams.

Target users

  • Lead generation agencies
  • Founders
  • Outbound SDR teams

Primary use cases

  • Cold email campaigns
  • Mailbox warm-up
  • Unified inbox
  • Lead sourcing

What makes it distinct

  • Unlimited mailboxes and warm-up.
  • Priced by contacts and sends.
  • Separate credits for leads.
Key features

Instantly features explained.

Outreach plans

Growth
$47 a month; 1,000 contacts; 5,000 emails.
Hypergrowth
$97; 25,000 contacts; 100,000 emails.
Light Speed
$358; 100,000 contacts; 500,000 emails.

Credits

Growth Credits
$47 a month.
Supersonic
$97 a month.
Hyper Credits
From $197.

Included

Mailboxes and warm-up
Unlimited on all plans.
Unibox, A/Z testing
Included.
API and webhooks
Included.
Pricing

Instantly pricing and plans.

Figures reported by independent sources; vendor page not reviewed directly. Checked 10 Nov 2026 against Valley.

Pricing model

Monthly or annual by uploaded contacts and sends; credits separate.

Free plan

No

Free trial

Yes (14 days)

Instantly plans and prices (USD)

  • Growth

    $47 per month ($37.60 annual)

    Monthly or annual

    1,000 contacts; 5,000 emails.

  • Hypergrowth

    $97 per month ($77.60 annual)

    Monthly or annual

    25,000 contacts; 100,000 emails.

  • Light Speed

    $358 per month ($286.30 annual)

    Monthly or annual

    100,000 contacts; 500,000 emails.

The source is a competing vendor; it notes fees are non-refundable and plans auto-renew.

Prices change. Confirm current plans and terms on the vendor's site before you decide.

Visit official website (external) ↗See alternatives
Integrations and compatibility

Instantly integrations, API and platforms.

Important integrations

  • HubSpot
  • Salesforce
  • Webhooks and API

Supported platforms

  • Web

API

Not reviewed for this profile.

Data import and export

Not reviewed for this profile.

Integration coverage was not assessed in full. Check Instantly's integrations directory and documentation for your tools.

Strengths, limitations and best fit

Instantly pros and cons.

Strengths, limitations and best fit. Each point cites a source; editorial summaries are not customer reviews.

Strengths

  • Unlimited mailboxes and warm-up on every plan. [1]
  • Low entry price. [1]
  • 14-day trial without a card. [1]

Limitations

  • Lead data requires separate credit plans. [1]
  • Fees are non-refundable. [1]
  • Hard caps on contacts and monthly sends. [1]

Best for

  • High-volume cold emailers and agencies using many mailboxes
  • Founders on a budget
  • Teams scaling sending infrastructure

May be less suited to

  • Enterprise sales engagement with calls and deals
  • Teams wanting LinkedIn automation built in
How it compares

Instantly compared with similar sales engagement software.

Summaries come from each profile. This is a side-by-side aid, not a ranking.

ProductPricing modelStarting priceFree planChannelsBest for
InstantlyBy contacts and sends$47/mo ($37.60 annual)No; 14-day trialEmailHigh-volume cold email
Apollo.ioPer user + credits$49/user/mo (annual)YesEmail, phone, LinkedIn tasksStartups and SDR teams
KlentyPer user$50/mo (Starter)No; 14-day trialEmail, phone, LinkedInSDR teams
lemlistPer user$69/user/moYes (no sending)Email, LinkedIn, callsSmall teams and agencies
MixmaxPer user by recipients$29/user/mo (yearly)Yes (50 recipients)Email; dialer add-onGmail teams
OutreachPer user, annual quoteNot published (~$100+/user/mo)NoEmail, phone, LinkedIn tasksEnterprise sales teams

Browse all Sales Engagement Software →

Discussions

Instantly discussions and buying questions.

No published discussions mention this product yet.

FAQ

Instantly questions and answers

What is Instantly used for?

Instantly is a cold email platform that lets teams connect unlimited sending mailboxes with automated warm-up, priced by uploaded contacts and monthly sends, plus credits for its lead database. Typical uses include cold email campaigns, mailbox warm-up, unified inbox, lead sourcing.

How much does Instantly cost?

Growth is $47 a month ($37.60 annual), Hypergrowth $97 and Light Speed $358.

Does Instantly charge per mailbox?

No, connected mailboxes and warm-up are unlimited on every plan.

Does Instantly include leads?

Lead database access uses separate credit plans from $47 a month.

How does Instantly compare with its competitors?

Stack18 publishes head-to-head comparisons of Instantly vs Smartlead and lemlist vs Instantly, each with a feature table, pricing and best-fit scenarios.

What are the main alternatives to Instantly?

The main alternatives to Instantly covered on Stack18 are Smartlead, lemlist, Woodpecker and Reply.io. Smartlead may suit agencies running cold email for many clients. lemlist may suit small teams running personalised multichannel cold outreach. Woodpecker may suit B2B teams and agencies focused on safe cold email deliverability. See the Instantly alternatives guide for a side-by-side table.

What are the pros and cons of Instantly?

Strengths: Unlimited mailboxes and warm-up on every plan. Low entry price. Limitations: Lead data requires separate credit plans. Fees are non-refundable.

Who is Instantly best for?

Instantly may suit high-volume cold emailers and agencies using many mailboxes; founders on a budget; teams scaling sending infrastructure. It may be less suited to enterprise sales engagement with calls and deals; teams wanting LinkedIn automation built in.

What integrations does Instantly support?

Documented integrations and ecosystem items include HubSpot, Salesforce, Webhooks and API. API: Not reviewed for this profile.

When was the Instantly profile last verified?

Sources for this profile were last reviewed on 10 Nov 2026. 1 source is listed under Sources, and prices and plans can change, so confirm with the vendor.

Sources and freshness

Where this information comes from.

  1. Instantly Pricing Explained (2026) Valley (competing vendor) Third-party Accessed 10 Nov 2026

Secondary-source profile. Vendor pages were not reviewed directly for this profile. Facts and prices are taken from independent third-party sources and may differ from the vendor's current pages. Confirm with the vendor before buying.

Prices come from a competing vendor's guide dated 7 September 2026. Capabilities were not tested.

Stack18 has not tested this product or received anything from the vendor for this profile. Editorial summaries of vendor information are not endorsements. Confirm details with the vendor before buying.

Next step

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