Instantly vs Warmbox
A factual comparison of features, pricing, and capabilities
Last updated: 2/6/2026
Cold email platform with unlimited email accounts, unlimited warmup, and a 450M+ B2B lead database.
Starting at: $37/month
Pricing Comparison
Prices shown are monthly rates. Annual billing may offer discounts. Visit official websites for current pricing.
Feature Comparison
| Feature | Instantly | Warmbox |
|---|---|---|
| Unlimited email accounts | ||
| Unlimited email warmup | ||
| Email verification | ||
| Master inbox | ||
| Campaign analytics | ||
| A/B testing | ||
| AI-powered features | ||
| Dedicated IP rotation (Light Speed+) | ||
| Automated email warmup with AI-powered interactions | ||
| Customizable warmup recipes and strategies | ||
| Spam score monitoring and blacklist checks | ||
| Real-time analytics and reporting dashboard | ||
| DNS checker (SPF, DKIM, DMARC) | ||
| Multi-inbox support within a single account | ||
| Auto-reply, open, and favorite marking simulation | ||
| Team collaboration with per-plan member limits |
Available
Partial/Limited
Not Available
Integrations
Instantly
HubSpotSalesforcePipedriveZapierMaken8nClaySlackGoogle Calendar
Warmbox
GmailGoogle WorkspaceOutlookMicrosoft 365Yahoo MailAmazon SESSMTPZoho Mail
Information on this page is gathered from official sources and may change. Pricing and features were last verified on 2/6/2026. Please visit the official websites for the most current information.