MailStackDB
33+ Tools ReviewedUpdated March 2026Independent & Unbiased

Instantly

Scale your outreach with unlimited email accounts and built-in warmup.

4.7
From $30/mosubscriptionFounded 2021
Best for agenciesBest for startupsBest for sales teams

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Instantly Review

Instantly is a scale your outreach with unlimited email accounts and built-in warmup. It is one of the leading tools in the cold email platforms space, designed for agencies, startups, sales teams. Key features include Built-in warmup network included on all plans, Unlimited SMTP rotation, Auto-rotate across all connected accounts, Built-in verification, Up to 26 A/B variants. Instantly has built a strong reputation for reliability and performance in the cold email infrastructure ecosystem. The platform is well-suited for teams that need agencies capabilities without sacrificing deliverability or ease of use. Whether you are scaling an outreach operation or optimizing an existing one, Instantly provides the tools and infrastructure to do it effectively. Instantly integrates with popular tools in the cold email stack, making it easy to fit into existing workflows. The pricing is competitive for the feature set offered, and the platform is regularly updated with new capabilities based on user feedback. For teams evaluating cold email platforms solutions, Instantly is worth serious consideration. It balances features, pricing, and usability in a way that works for both beginners and experienced cold email operators.

Instantly Pricing

Growth

$30/mo
  • 1,000 contacts
  • 5,000 emails/mo
  • Unlimited accounts

Hypergrowth

$78/mo
  • 25,000 contacts
  • 25,000 emails/mo
  • Unlimited accounts

Light Speed

$286/mo
  • 500,000 contacts
  • 500,000 emails/mo
  • Unlimited accounts

Features

FeatureStatusDetails
Email WarmupBuilt-in warmup network included on all plans
SMTP RotationUnlimited SMTP rotation
Inbox RotationAuto-rotate across all connected accounts
Email VerificationBuilt-in verification
A/B TestingUp to 26 A/B variants
AnalyticsCampaign and deliverability analytics
CRM IntegrationsHubSpot, Salesforce, Zapier
API AccessREST API and webhooks
Team FeaturesWorkspace and client sub-accounts
Deliverability MonitoringDomain health dashboard
Spintax Support
Subsequences
Lead Database160M+ B2B contacts
Unified InboxUnibox for all replies
Custom Tracking Domain

Pros & Cons

Pros
  • Unlimited email accounts on all plans
  • Built-in warmup at no extra cost
  • Excellent deliverability features
  • 160M+ contact lead database
  • Competitive pricing
  • Active community
Cons
  • Basic CRM compared to dedicated tools
  • Support can be slow
  • Learning curve for advanced features
  • Lead database accuracy varies

Compare Instantly With Alternatives

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Scale your outreach with unlimited email accounts and built-in warmup.