Best Warmy alternatives worth switching to in 2026

Warmy.io pulled its pricing page in 2026 and now routes every signup through a demo call. Warmy is a dedicated email warmup tool with spam-test scoring and deliverability monitoring, but sales-gated pricing, per-mailbox costs, and no built-in sending push teams elsewhere. The strongest Warmy alternatives in 2026 are Instantly for bundled warmup and sending, Smartlead for unlimited free warmup on every plan, and MailReach for transparent per-mailbox pricing.

By Rishabh Ambasta, Founder, Modern Inbound.

Where Warmy actually loses to its alternatives

Warmy charges per mailbox and now hides that number behind a sales call, per MailReach's breakdown of Warmy's 2026 pricing. Every alternative below bundles warmup into a platform you already pay for, or keeps its per-mailbox price public. The real gap is transparency and bundling, not warmup quality.

• Warmy: spam-test scoring, no sending, pricing hidden behind a demo call.
• Instantly and Smartlead: warmup bundled free into a sending platform.
• MailReach and Lemwarm: standalone specialists with public per-mailbox pricing.

1. Instantly.ai

From $37/mo (annual Growth plan) - Best for teams sending 500+ emails/month - Unlimited warmup on every plan

Instantly's Growth plan includes unlimited warmup at no extra charge, a real saving against Warmy's old rates, per Instantly's pricing page. The catch: Instantly runs several billed products under one login, and SDR teams often pay $200-400/mo after credits, per Landbase's 2026 breakdown.

Where it falls short: the headline price rarely matches the final invoice.

2. Smartlead

From $32.50/mo (annual Base plan) - Best for agencies running 20+ mailboxes - Unlimited mailboxes and warmup on every tier

All four Smartlead plans include unlimited accounts and unlimited warmup, so an agency running 30 mailboxes pays the same $32.50/mo as one running 3, per Smartlead's pricing page.

Where it falls short: add-ons like SmartInfra and SmartProspect bill separately and add up fast.

3. MailReach

From $20-25/mailbox/mo - Best for founders with a handful of mailboxes - Public pricing with volume tiers

MailReach charges $25/mailbox/mo monthly or $20 annual, dropping toward $16 past 51 mailboxes, per MailReach's own pricing tiers. It's a dedicated warmup and spam-test tool, not a sender, so it slots in beside whatever you already use.

Where it falls short: cost still scales linearly with every mailbox, same as Warmy.

4. Lemwarm

From $24/mo/inbox standalone, free with Lemlist - Best for teams already on Lemlist's Email Pro plan - Free warmup bundled into an active subscription

Standalone Lemwarm runs $29/mo per inbox ($24 annual), but it's free with an active Lemlist subscription starting near $63/user/mo annual, per Lemlist's pricing page.

Where it falls short: Lemwarm alone, without Lemlist's sending tools, is a worse deal than most options here.

FAQ

Picking a warmup tool fixes deliverability. It doesn't fix a mailbox that's empty because nobody's replying. That's the part Modern Inbound handles: sourcing, copy, and campaign execution built around inboxes that are already warm. See how pay-per-lead pricing works.