WarmerlyWarmerly ahead on this row
5
Warmerly
Snov.io
One-to-one · Mailboxes warmed on the entry plan
Mailboxes warmed on the entry plan
One row, in depth: what each tool does, the verified numbers, and who each suits.
Snov.io details read from its pricing page, home page, warm-up page and help centre on 21 October 2026.
Warmerly
5
Snov.io
3
The short answer
Mailboxes warmed on the entry plan, in one look.
Warmerly Starter warms 5 mailboxes for $19. Snov.io Starter warms 3 for $39. The free plans are closer: Warmerly Free allows 1 mailbox and Snov.io's Trial includes 1 warm-up slot. Last checked 21 October 2026.
Snov.io
3
The picture
Drawn side by side.
On screen
What it looks like.
WarmerlySample data
How Warmerly does it
Warmerly, in detail.
Five mailboxes on Starter, one on Free, 25 on Growth.
01
Starter warms 5
Starter connects up to 5 mailboxes and warms every one.
Warmerly product, checked 21 October 2026
02
Free warms 1
The Free plan allows 1 mailbox with no card, and every signup also gets a sandbox mailbox that is already warming.
Warmerly product, checked 21 October 2026
03
Growth warms 25
Growth at $49 connects up to 25 mailboxes.
Warmerly product, checked 21 October 2026
04
Hosted mailboxes as an option
Warmerly also sells hosted mailboxes and every signup gets a sandbox mailbox already warming, separate from the mailbox Free allows.
Warmerly product, checked 21 October 2026
05
Which mailboxes connect
Gmail, Outlook, Zoho and any SMTP and IMAP mailbox connect, and each connected mailbox is warmed up to the plan's mailbox limit.
Warmerly product, checked 21 October 2026
06
A warming mailbox can send campaigns
Warmerly warms and sends from the same mailboxes, and has a help page on launching a campaign before warmup has finished.
Warmerly product, checked 21 October 2026
How Snov.io does it
Snov.io, in detail.
One slot on the Trial, three on Starter, unlimited from Pro S.
01
Starter has 3 slots
The Starter plan lists 3 warm-up accounts at once, at $39 a month.
snov.io/pricing · read 21 October 2026
02
Trial has 1 slot
The free Trial includes 1 warm-up slot, plus 450 warm-up emails in total.
snov.io/knowledgebase/warm-up-slots-and-warm-up-volume-limits · read 21 October 2026
03
A fourth account needs Pro S
The next plan up, Pro S at $99, lists unlimited warm-up accounts.
snov.io/pricing · read 21 October 2026
04
What a slot means
One slot is one email account in warm-up for the whole campaign. Removing the account from warm-up frees the slot for another account.
snov.io/knowledgebase/warm-up-slots-and-warm-up-volume-limits · read 22 October 2026
05
Any provider, with one limit
The FAQ says any account connected to Snov.io can be warmed up with any provider, including specialised SMTP hosts, and a targeted warm-up for specific providers is available.
snov.io/knowledgebase/faq-email-warm-up · read 22 October 2026
06
Backup mailboxes
The FAQ suggests keeping a few warmed-up backup mailboxes. Warm-up emails go only to inboxes in the warm-up network, never to your leads.
snov.io/knowledgebase/faq-email-warm-up · read 22 October 2026
07
Warm-up on every plan
Warm-up is included in every plan, including the free one, and uses no credits.
snov.io/knowledgebase/faq-email-warm-up · read 22 October 2026
08
The unlimited tier starts at Pro S
The warm-up page says unlimited accounts with one dashboard and bulk settings come from the Pro S plan up, under a Fair Use Policy. The FAQ calls the same tier Pro 5K.
snov.io/email-warm-up · read 22 October 2026
09
Outreach slots are separate
Snov.io LinkedIn slots and done-for-you mailboxes are billed separately from plan slots and are cancelled separately in Billing.
snov.io/knowledgebase/how-to-cancel-my-account · read 22 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.
- Any way to buy a single extra warm-up slot on Starter
- Whether single warm-up slots can be bought on Starter
- How the Fair Use Policy treats mixed fleets
The numbers
Only what we could verify.
| Measure | Warmerly | Snov.io |
|---|---|---|
| Mailboxes warmed on the entry plan | 5 | 3 |
| Mailboxes warmed, entry paid plan | 5 | 3 |
| Price of that plan | $19 | $39 |
| Cost per warmed mailbox, our arithmetic | $3.80 | $13 |
| Free plan | 1 mailbox | 1 slot |
| Mailboxes warmed on $99 a month | 25 on Growth at $49, with room for 100 on Agency at $179 | Unlimited on Pro S, Fair Use applies |
| Cost of 5 mailboxes, our arithmetic | $19 (Starter) | $99 (Pro S), as Starter only has 3 slots |
| Cost of 3 mailboxes, our arithmetic | $19 (Starter) | $39 (Starter) |
| Warm-up included in the free plan | Yes, 1 mailbox | Yes, 1 slot, 450 emails total |
The plans
Every plan, side by side.
Warmerly
Free$01 mailbox · capped sends · no card
Starter$195 mailboxes · no cap on sends
Growth$4925 mailboxes · no cap on sends
Agency$179100 mailboxes · client workspaces · API
LinkedIn add-on$19Per connected LinkedIn account, no trial
Snov.io
Trial$050 credits · 100 recipients · 1 warm-up slot
Starter$391,000 credits · 5,000 recipients · 3 warm-up slots
Pro S$995,000 credits · 25,000 recipients · unlimited warm-up
Pro M$18950,000 recipients · unlimited warm-up
Pro L$369100,000 recipients · unlimited warm-up
Ultra$738200,000 recipients · unlimited warm-up
Per month, billed monthly. Snov.io prices were read on snov.io/pricing on 21 October 2026; its card prices of $29.25 and $74.25 appear to be the annual rate (25% off). Snov.io's unlimited warm-up is subject to a Fair Use policy. Warmerly's LinkedIn add-on is charged per account on top of the plan.
In practice
What it means for you.
Our reading of the facts above. Not a promise, and not the only reasonable reading.
Our arithmetic
$19 over 5 mailboxes is $3.80 each. $39 over 3 slots is $13 each. That is arithmetic on list prices, and Snov.io's price also covers finding and verifying.
Three mailboxes
Both cover three: Warmerly Starter at $19 and Snov.io Starter at $39. The gap is $20 a month, or $240 a year at monthly rates. Our arithmetic.
Five mailboxes
Warmerly Starter at $19 holds five. Snov.io Starter holds three, so a fourth and fifth need Pro S at $99, a difference of $80 a month, $960 a year.
If Fair Use might apply
If most of your accounts are on hosts other than Gmail or Microsoft, ask Snov.io support what slot count you would get on an unlimited plan before you buy.
Who it suits
Pick the one that fits.
Warmerly
Warmerly is the better fit if
- You send from 4 or 5 mailboxes and want them all warmed on the cheapest paid plan
- You want 5 or more mailboxes warming for under $50 a month
- You want a free mailbox warming without a card
Snov.io
Snov.io is the better fit if
- You send from 3 mailboxes or fewer and want Snov.io's other tools in the same plan
- You want warm-up on every plan, with unlimited accounts from one tier
- You want warm-up beside finder, verifier and CRM tools
Questions
Can I add more warm-up slots to Snov.io Starter?
We found no way to buy a single extra slot on Starter. Its pricing page lists unlimited warm-up accounts from Pro S.
How many mailboxes can I warm on Warmerly Free?
One, plus the sandbox mailbox every signup gets.
Does warm-up use credits on Snov.io?
No. Warm-up uses no credits and is on every plan.
Which provider types work?
Snov.io says any provider including SMTP hosts. Warmerly lists Gmail, Outlook, Zoho and any SMTP and IMAP mailbox.
Sources
- Snov.io pricing page
- Snov.io help: warm-up slots and limits
- Snov.io email warm-up FAQ
- Snov.io email warm-up page
- Snov.io cancellation help article
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.
More features
See it on your own mailbox.
Connect a mailbox. Warmerly runs alongside whatever you send from now, so you can compare before you move anything.
Free plan, no card. Paid plans: 7-day trial, first charge on day 8.