The best Warmy.ioalternatives in 2026.

Warmy is one of the most capable warmup tools going, but the per-inbox pricing climbs as you scale and the public prices have gone behind a demo. Here are the alternatives worth weighing, and the things Warmy still does better than HotHawk.

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#	Tool	Best for	From
1	HotHawk	The same warmup quality, without the per-inbox bill	$97/mo
2	Lemwarm	A cheaper standalone tool with a published price	$29/mo
3	Smartlead	Folding warmup into a low-cost sender	$39/mo
4	Mailwarm	Hands-off, expert-assisted warmup for one inbox	$69/mo
5	Instantly	Warmup inside an all-in-one with a lead database	$47/mo
6	Maildoso	Buying mailboxes, with warmup as an extra	Warmup add-on from $160/mo

First, the why

Why teams look past Warmy.

Warmy is genuinely good at warmup, with real inboxes and proper diagnostics. These are the four things that still send teams looking for an alternative.

Per-inbox pricing punishes growth

The most common complaint by far. Because you pay by the inbox, the bill climbs as you scale, and warming 19 mailboxes can top $2,000 a month.

The price is now hidden

Warmy pulled its public prices in 2026. The pricing page shows volume-based plans and a Book a demo button, so you cannot compare on cost without a sales call.

The best features are gated

Custom topics, the 30-plus languages and your own templates sit behind the Premium tier, and the API is gated to Expert and above.

Microsoft and warmup-quality gripes

There are recurring reports of weak Google Workspace and Outlook results, and of warmup messages repeating content or using the wrong names.

The list

The best Warmy.io alternatives, ranked.

HotHawk

from $97/moOur pick

Warmup as capable as Warmy on the method, but built into a sender for one flat price.

Where it wins. Here we will be straight: Warmy and HotHawk warm the same way, on real inboxes with AI-written conversations across topics, filtered out of your inbox. So the win is not the method. It is that HotHawk includes warmup in the platform for one flat price instead of charging by the inbox, the pool is real Google and Microsoft inboxes only rather than a B2B and consumer mix, and risky mailboxes are quarantined while bouncing ones are suspended. The price is also on the website, not behind a demo.

The trade-off. Warmy genuinely beats us on standalone diagnostics: seed-list inbox-placement testing, a Google Postmaster integration and 30-plus languages. It also warms Yahoo, Amazon SES and Zoho, which our Google and Microsoft pool does not. And HotHawk is a full sender, not a tool you bolt onto another one.

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Lemwarm

from $29/mo

Real-inbox warmup, free inside Lemlist or $29 an inbox, with a price you can actually see.

Where it wins. Warms across 20,000-plus real domains with human-like replies, and unlike Warmy it publishes its pricing. Free if you already pay for Lemlist, and noticeably cheaper per inbox than Warmy at the entry level.

Where it falls short. The pool is not restricted to business Google and Microsoft inboxes, the entry plan caps warmup at 40 a day, and the deliverability tooling is lighter than Warmy, with no seed-list placement testing of its own.

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Smartlead

from $39/mo

A full sender with warmup and unlimited mailboxes included on every plan.

Where it wins. Warmup, rotation and unlimited mailboxes come bundled for $39 a month, with per-mailbox analytics to catch a failing inbox. For teams warming many mailboxes, it sidesteps the per-inbox maths that makes Warmy expensive.

Where it falls short. It is a sender, so switching to it is a workflow change rather than a like-for-like warmup swap, white-label is $29 per client, and support is its most common complaint.

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Mailwarm

from $69/mo

A premium, white-glove warmup tool built around a single inbox.

Where it wins. Two-minute setup and deliverability-expert calls on every plan, on a real-inbox network. If you want someone guiding the warmup of one important mailbox, it is built for that.

Where it falls short. Priced by inbox from $69 a month with no free trial, a thin and aging review base, and independent flags about Microsoft and Outlook placement.

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Instantly

from $47/mo

Free, unlimited warmup folded into a big all-in-one prospecting tool.

Where it wins. Warmup is included free and unlimited on every plan, next to a 450M-record lead database and a quick setup. A lot of tool in one login if you want warmup, sending and data together.

Where it falls short. It is a platform, not a standalone warmup tool, the pool size is quoted inconsistently across its own pages, and reviewers say the heat scores do not always track real inbox placement.

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Maildoso

from Warmup add-on from $160/mo

Done-for-you domains and inboxes, with a separate AI warmup add-on.

Where it wins. Supplies the mailboxes Warmy only warms: domains and inboxes from around $0.49 each, self-healing mailboxes and IP rotation, set up in minutes. Handy if your real need is sending infrastructure.

Where it falls short. Its warmup runs on AI browser bots rather than real inboxes, costs $160 to $2,000 a month on top of the mailboxes, and covers only Gmail and Outlook, with no Microsoft 365.

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How we ranked these

Our method.

We ranked on the points where Warmy actually frustrates people: how it is priced as you add inboxes, whether you can see that price at all, what is gated behind the top tiers, and the make-up of the warmup pool. Pricing and features come from each tool's own website as of June 2026, and the weak points come from public user reviews.

HotHawk is our product, so it leads, but Warmy is the closest rival to our own warmup and we have said where it genuinely wins, on diagnostics and provider breadth. We have also flagged that HotHawk is a full sender, not a standalone warmup tool. No tool paid to be here, and there are no affiliate links.

FAQ

Warmy alternatives, answered.

What is the best Warmy.io alternative?

If the issue is Warmy’s per-inbox cost, the cleanest fix is warmup bundled into the sender: HotHawk does it for one flat price on a pool of real Google and Microsoft inboxes, and Smartlead bundles it into a cheaper sender. If you want another standalone tool, Lemwarm is the cheaper option with a published price. We are upfront that Warmy still wins on standalone diagnostics.

Why do people switch from Warmy?

Almost always the pricing. It is charged per inbox, which gets expensive at scale, and the public prices were pulled in 2026, so you have to book a demo to get a number. Feature-gating on the higher tiers and recurring Microsoft and warmup-quality complaints are the next most common reasons.

How much does Warmy cost now?

Warmy no longer publishes prices. Its pricing page shows volume-based B2B, B2C and custom plans behind a Book a demo button. Older figures put the entry plan around $49 an inbox a month, but treat that as a planning estimate rather than a current quote, and expect the per-inbox cost to rise as you add mailboxes.

Is HotHawk’s warmup better than Warmy’s?

Not on method, and we would not claim it is. Both warm on real inboxes with AI-written conversations and keep warmup mail out of your inbox. The differences are that HotHawk includes warmup in the platform price rather than charging per inbox, warms only against real Google and Microsoft inboxes, and quarantines risky mailboxes. Warmy, in turn, has the deeper standalone diagnostics.

Does Warmy support Yahoo and other providers?

Yes, Warmy warms Gmail, Microsoft, Yahoo, Amazon SES, Zoho and custom SMTP, and splits B2B from B2C inboxes. That breadth is a genuine Warmy strength. HotHawk deliberately warms only against real Google and Microsoft inboxes, so if you need to warm Yahoo or SES, Warmy is the better fit there.

Comparison based on publicly available information from each provider's website, accurate as of June 2026. Pricing and features change, so check each provider for the latest. Weak points reflect themes in public user reviews, not absolute statements of fact. All product names are trademarks of their respective owners; HotHawk is not affiliated with or endorsed by them. Last updated June 2026.

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