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Warmerly Snov.io
One-to-one · Warmup model

Warmup model

One row, in depth: what each tool does, the verified numbers, and who each suits.

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Snov.io details read from its pricing page, home page, warm-up page and help centre on 21 October 2026.

Warmerly

Every mailbox on the plan, no slot count

Snov.io

Slot-based: 3 on Starter, unlimited from Pro S, subject to Fair Use

The short answer

Warmup model: slots or every mailbox, in one look.

Warmerly has no slot count: every mailbox connected on your plan is warmed, and the limit you feel is the number of mailboxes the plan allows. Snov.io counts warm-up slots: 3 on Starter, unlimited from Pro S, and its own help page says unlimited can be lowered under Fair Use. Last checked 21 October 2026.

WarmerlyWarmerly ahead on this row

Every mailbox on the plan, no slot count

Snov.io

Slot-based: 3 on Starter, unlimited from Pro S, subject to Fair Use

The picture

Drawn side by side.

What happens to the next mailbox

Connect a mailbox and see what each product does with it

WarmerlySnov.io
Warmerly
Connect a mailboxWarmup startsConnect anotherWarmup startsUp to 5 on Starter
Snov.io
Connect an accountTakes a warm-up slotThree slots usedNext one needs Pro SUnlimited, with Fair Use

Snov.io's help page says one slot is one email account. Warmerly's plan limits mailboxes, not warmed mailboxes.

How Warmerly does it

Warmerly, in detail.

Warmup is part of the plan, on every mailbox. The plan sets how many mailboxes you can connect: 1 on Free, 5 on Starter, 25 on Growth and 100 on Agency, with more on a call.

01

Every connected mailbox is warmed

There is no separate warmup slot to buy or count. A mailbox you connect to a plan is warmed, up to the number of mailboxes that plan allows.

Warmerly product, checked 21 October 2026

02

The limit is mailboxes, by plan

Free allows 1 mailbox, Starter 5, Growth 25 and Agency 100. More than 100 is priced on a call as Max.

Warmerly product, checked 21 October 2026

03

Warmup sends are not metered

Warmup sends are not a billing meter on paid plans. Every mailbox still follows the same ramp and daily ceiling, so this is not unlimited volume.

Warmerly product, checked 21 October 2026

04

Any mailbox that can send and receive

Warmerly connects Gmail, Outlook, Zoho and any SMTP and IMAP mailbox, and also sells hosted mailboxes.

Warmerly product, checked 21 October 2026

05

Above 100 mailboxes

More than 100 mailboxes is the Max plan, agreed on a call and with no published price, so the cost of warming a very large fleet on Warmerly is not something you can read off a page.

Warmerly product, checked 21 October 2026

How Snov.io does it

Snov.io, in detail.

Slots are the unit. One slot warms one email account, and the number of slots depends on the plan.

02

Slots by plan

Trial 1, Starter 3, and unlimited warm-up accounts from Pro S, Pro M, Pro L and Ultra.

snov.io/pricing · read 21 October 2026

03

Unlimited is subject to Fair Use

The help page says active warm-up slots may be lowered from unlimited to 500 on Pro S and Pro M, or to 1,000 on Pro L and Ultra, if more than half of your connected accounts use providers other than Gmail or Microsoft.

snov.io/knowledgebase/warm-up-slots-and-warm-up-volume-limits · read 21 October 2026

What Snov.io does not say

We looked, and found no statement on these. That is about its published pages only, not about the product.

  • How or when slots are lowered under Fair Use
  • Whether Starter and Trial are affected by Fair Use
  • The practical ceiling on unlimited slots

Where the sources disagree

We report each version rather than pick one.

  • Snov.io's warm-up FAQ says unlimited slots start from the Pro 5K plan, while its pricing page names the plan Pro S. We treat them as the same plan and use the pricing page name.
  • The pricing page says the Trial renews every month, while the help page says the Trial's 450 warm-up emails do not renew when the free plan extends to the next month.
The numbers

Only what we could verify.

Warmup model: Warmerly and Snov.io side by side. Warmerly is in the first column.
MeasureWarmerlySnov.io
Warmup modelEvery mailbox on the plan, no slot countSlot-based: 3 on Starter, unlimited from Pro S, subject to Fair Use
Warm-up accounts on the entry paid plan5 mailboxes (Starter)3 slots (Starter)
Plan with no slot countEvery plan warms every mailboxPro S, at $99
Fair Use fallback on unlimitedNot applicable500 or 1,000 slots
In practice

What it means for you.

Our reading of the facts above. Not a promise, and not the only reasonable reading.

1

If you run 3 or fewer mailboxes

Both cover you on a paid plan. Snov.io Starter is $39 and Warmerly Starter is $19, and Warmerly's plan has room for 5.

2

If you run a mixed fleet

Snov.io's Fair Use wording names providers other than Gmail and Microsoft. If most of your mailboxes sit on other hosts, ask Snov.io support what slot count applies to you before you buy.

3

Where Warmerly is behind

Past 25 mailboxes Warmerly needs Agency at $179, while Snov.io Pro S is $99 for unlimited slots, so Snov.io is the cheaper way to warm a large fleet if Fair Use does not bite.

4

If you are adding mailboxes over time

On Snov.io the slot count only matters at the step from Starter to Pro S, because Starter holds 3 slots and Pro S has no count. On Warmerly the step points are 5, 25 and 100 mailboxes, at $19, $49 and $179, so the cost rises in smaller, more predictable steps. Snov.io's jump is $39 to $99, but it buys far more than warm-up, and you may already be paying for those parts.

5

What to ask before you buy either

For Snov.io, ask support how Fair Use is applied if your fleet is mostly on Zoho or custom SMTP hosts, because the help page names providers other than Gmail and Microsoft. For Warmerly, check the mailbox count on the plan against the mailboxes you plan to connect over the next six months, since that count is the only limit on how many are warmed.

6

A slot is not the whole story

A slot decides whether an account is warmed at all. It does not say how hard it is warmed. For that, read the volume page in this set: the daily limit per account is a separate setting on both tools.

Who it suits

Pick the one that fits.

Warmerly

Warmerly is the better fit if

  • You want every connected mailbox warmed with no slot to count
  • You warm between 4 and 25 mailboxes and want to pay $19 to $49
  • You want to see the daily limit and the reason for it for each mailbox
Snov.io

Snov.io is the better fit if

  • You warm more than 25 mailboxes and Pro S at $99 covers them
  • You want warm-up inside the same plan as finding, verifying and sequences
  • Most of your mailboxes are on Gmail or Microsoft, so Fair Use is unlikely to matter
Questions
How many mailboxes does Snov.io warm up?

Three on the $39 Starter plan and one on the free Trial plan. Unlimited warm-up accounts start at Pro S ($99 a month), subject to Fair Use, which can lower slots to 500 or 1,000. Warmerly warms every mailbox on the plan: 5 on Starter, 25 on Growth, 100 on Agency.

Does Warmerly have warmup slots?

No. Warmup is on for every mailbox you connect. The plan limits how many mailboxes you can connect, not how many are warmed.

Which is cheaper for ten mailboxes?

On published prices, Warmerly Growth at $49 a month covers 25 mailboxes, while Snov.io needs Pro S at $99 a month to go past 3 slots. The tools do different jobs: Snov.io's plan also includes credits, recipients and a CRM, so compare the whole bundle before you decide on warm-up alone.

Can I keep Snov.io for finding leads and use Warmerly only for warmup?

Yes, that is a normal pairing. Snov.io's slot is freed when you remove the account from its warm-up, so you can move warm-up to Warmerly and keep the rest of your Snov.io plan. Check that you are not warming the same mailbox in two tools at once.

Sources

Snov.io pages were read on 21 October 2026. Plans and wording change, so check the vendor's own page before you decide. Warmerly details come from the product as it runs today.

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