Warmerly
Warmup works the same on every plan; plans differ in mailbox count and monthly allowances.
Warmerly
Warmup Inbox
One-to-one · What each tier adds
What each tier adds
One row, in depth: what each tool does, the verified numbers, and who each suits.
Warmup Inbox details read from its pricing page, home page, product pages, API page, integrations pages, help centre, legal pages and status page on 21 October 2026.
Warmerly
Warmup works the same on every plan; plans differ in mailbox count and monthly allowances.
Warmup Inbox
Pro adds your own templates, topics, 12 languages and scheduling; Max adds premium support and a setup check.
The short answer
What each tier adds, in one look.
Warmup Inbox sells three feature tiers, and what you can control about warmup depends on which you pick: Pro adds your own templates, topics, language warmup, ESP targeting and scheduled warmup, and Max adds premium support, a technical setup check and an unlimited developer API. Warmerly runs the same warmup on every plan and sells size instead: mailbox count and monthly allowances. If you want to tune warmup per inbox, Warmup Inbox gives you more to tune. If you want one behaviour at one price, Warmerly gives you that. Last checked 21 October 2026.
Warmup InboxWarmup Inbox ahead on this row
Pro adds your own templates, topics, 12 languages and scheduling; Max adds premium support and a setup check.
The picture
Drawn side by side.
What each tier unlocks
Features that change with the plan
WarmerlyWarmup Inbox
WarmerlyThe same on every plan
- Warmup rampevery plan
- DNS checksevery plan
- Own templatesnot offered
- Languagesnot offered
Warmup InboxSet by tier
- Own templatesPro and Max
- TopicsPro and Max
- 12 languagesPro and Max
- Premium supportMax
Warmerly's plans differ in mailbox count and monthly allowances, not in how warmup works.
How Warmerly does it
Warmerly, in detail.
Warmup behaves the same on Free, Starter, Growth and Agency. The plans differ in how many mailboxes they connect and in the monthly allowances for lead tools, placement tests and AI credits.
01
One warmup engine for every plan
Every mailbox follows the same ramp and the same pairing rules on every plan. A Free mailbox warms exactly as an Agency mailbox does. Plans differ in how many mailboxes you connect and in allowances, not in how warmup works.
Warmerly product, checked 21 October 2026
02
Allowances rise by tier
Placement tests are 3 a month on Free, 5 on Starter, 25 on Growth and 100 on Agency. AI credits are 0, 100, 500 and 2,500. Email lookups are 50, 1,000, 10,000 and 100,000.
Warmerly product, checked 21 October 2026
03
Capacity rises by tier
Active campaigns are limited to 1 on Free and 5 on Starter, and active prospects to 500 and 5,000. Growth holds 50,000 active prospects and Agency 250,000. Leads per campaign are 500, 2,500, 25,000 and 100,000.
Warmerly product, checked 21 October 2026
04
What you can still change
You can set a lower daily limit on a mailbox yourself, and pause warmup on it. The reply probability defaults to 0.3 for a first message and the product tunes it between 0.15 and 0.40 by health; you cannot set it. The warmup page names the factor limiting today's quota for each mailbox.
Warmerly product, checked 21 October 2026
05
What there is no setting for
There is no topic picker, no language picker, no template mode and no provider weighting in the warmup code. We checked the warmup directory on 21 October 2026 and found none of them.
Warmerly product, checked 21 October 2026
06
Support does not change with the plan
Support is by email at support@warmerly.com on every plan, with the docs and help centre. We publish no response time and no priority tier.
Warmerly product, checked 21 October 2026
How Warmup Inbox does it
Warmup Inbox, in detail.
Basic, Pro and Max differ in daily volume, reply-rate ceiling and feature set. Basic is the monitoring and sequences base, Pro unlocks the warmup controls, Max adds support and API.
01
Basic
Replies to your warmup emails of up to 25%, more than 30K real inboxes, spam and category monitoring, an email reputation check, outreach sequences, dashboards, human-like AI generated content, a developers API, chat support and the affiliate programme.
warmupinbox.com/pricing · read 21 October 2026
02
Pro, everything in Basic plus
Add your own templates, choose warm up topics, language warm up, custom warm up settings, custom template statistics, specific ESP warm up, scheduled warm up and priority customer support. Replies reach up to 45%.
warmupinbox.com/pricing · read 21 October 2026
03
Max, everything in Pro plus
Premium customer support, a technical setup check, an unlimited developers API and early access to new features. Replies reach up to 50% on the pricing page, with 1,000 warmup messages a day.
warmupinbox.com/pricing · read 21 October 2026
04
The four settings that scale
A help article names Starting Baseline, Increase Per Day, Max Sends Per Day and Reply Rate Percentage. Its recommended values for a new address are 4, 2, 75 and 25% on Basic; 4, 4, 250 and 45% on Pro; and 4, 6, 1,000 and 50% on Max.
help.warmupinbox.com/en/articles/6133076-sending-frequency · read 21 October 2026
05
Inbox rotation is a Max feature
A help article describes rotation that switches Max inboxes between enabled and disabled every 2 weeks, 14 days. It needs at least 1 Max plan credit, and one credit can serve several inboxes in turn by pausing one to free a slot.
help.warmupinbox.com/en/articles/10617630-inbox-rotating-feature · read 21 October 2026
06
Send-only is a separate plan
For inboxes that can send but cannot receive over IMAP, a help article describes a Send-only plan at $139 a month for up to 150 warmup emails a day, with all Pro features. It is not on the pricing page.
help.warmupinbox.com/en/articles/12059718-send-only-plan-what-you-need-to-know · read 21 October 2026
07
Developer API on every paid plan, unlimited on Max
The pricing page lists a developers API on Basic and an unlimited developers API on Max. Its API page says the API is available on the 7-day trial or any paid plan, and that reply caps and templates depend on the plan.
warmupinbox.com/api-access · read 21 October 2026
What Warmup Inbox does not say
We looked, and found no statement on these. That is about its published pages only, not about the product.
- What limited means for the developers API on Basic compared with unlimited on Max
- The Pro reply-rate ceiling stated in one place only, since the pricing page and the API page disagree about Max
- A published list of what custom warmup settings covers beyond the four named in the help article
- Response times for priority or premium support, which is described only by its name
- The content of the technical setup check on Max, beyond its title
- Whether a feature tier can be set per inbox in a mixed account; the API page says an inbox can be moved between Basic, Pro and Max
Where the sources disagree
We report each version rather than pick one.
- Max's reply-rate ceiling is up to 50% on the pricing page and in the help centre, and 65% on the API page.
- The pricing page lists a developers API on Basic and an unlimited one on Max, while its Instantly comparison page ties API access to Max.
- The Send-only plan is described in a help article and is not on the pricing page, so the plan count depends on where you look.
The numbers
Only what we could verify.
| Measure | Warmerly | Warmup Inbox |
|---|---|---|
| What each tier adds | Warmup works the same on every plan; plans differ in mailbox count and monthly allowances. | Pro adds your own templates, topics, 12 languages and scheduling; Max adds premium support and a setup check. |
| Tiers | 4 plans, one warmup behaviour | 3 tiers plus a Send-only plan |
| Warmup messages a day, top tier | 50 a day by day 30, same on every plan | 75, 250 or 1,000 by tier |
| Reply-rate ceiling | Default 0.3 chance for a first message, adjustable per mailbox | Up to 25%, 45% and 50% by tier |
| Own templates | Not offered | Pro and Max |
| Languages | Not offered | 12 languages on Pro and Max |
| Support tiers | Email on every plan | Chat, priority, premium |
| Placement tests a month | 3, 5, 25 and 100 by plan | Free placement test tool, no signup |
| Developer API | Agency plan only | Basic (limited) and Max (unlimited) |
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
MaxCustomMore than 100 mailboxes
Warmup Inbox
Freemium$0Unlimited inboxes · 15 warmup emails a week · no card
Basic$15Per inbox a month, annual billing · up to 75 warmup messages a day · $19 monthly
Pro$49Per inbox a month, annual billing · up to 250 a day · templates, topics, languages · $59 monthly
Max$79Per inbox a month, annual billing · up to 1,000 a day · premium support · $99 monthly
51 inboxes and upQuoteConsolidated billing · multi-client workspaces · no price shown
Per month. Warmup Inbox prices are per inbox: the cards show annual billing and its page data gives the monthly list prices, and the rate falls in bands from 5 inboxes up to 50; read on warmupinbox.com/pricing on 21 October 2026. Warmerly's email plans cover mailboxes and are billed monthly here; its LinkedIn add-on is charged per account on top.
In practice
What it means for you.
Our reading of the facts above. Not a promise, and not the only reasonable reading.
More to tune, more to pay
Warmup Inbox's controls are real, and each sits behind a tier that costs $34 more an inbox than Basic on annual billing for Pro ($49 less $15) and $64 more for Max. If you want to set topics, languages or provider weighting, there is no cheaper way to get them there.
Fewer decisions on the other side
Warmerly asks you for a mailbox and nothing else. For a team that does not want to choose a reply rate or a schedule, that is a feature. For a team that does, it is a gap, and we list it as one.
Defaults matter more than you think
A new Warmup Inbox user starts from Basic or Pro defaults of 4 a day with increases of 2 or 4, and may never change them. The point of a tier is what the defaults do for you, so compare the recommended ramp first, in the next feature page.
Allowances are the Warmerly lever
Our tiers move the numbers that cost us something per use: placement tests, verifications, AI credits. A Starter team that outgrows 5 placement tests a month meets that ceiling before it meets any mailbox ceiling.
Check where the support sits
If a named person to talk to matters, Warmup Inbox sells priority and premium tiers and a free 30-minute call. Warmerly offers email support, docs and a help centre. Neither publishes a reply time.
Who it suits
Pick the one that fits.
Warmerly
Warmerly is the better fit if
- You want one warmup behaviour on every plan and no tier to decode
- You do not need custom templates, topics or language warmup
- You value a mailbox count that scales more than a feature ladder
- You want allowances for verification and AI credits in the same plan
- You are happy with email support and a help centre
Warmup Inbox
Warmup Inbox is the better fit if
- You want to set a daily maximum and a reply rate per inbox
- You want your own templates and topics in the warmup mail
- You want warmup in a specific language for a regional market
- You want a named support tier and a technical setup check
- You rotate Max inboxes on a 14 day cycle
Questions
Does Warmerly's warmup differ by plan?
No. Every plan reaches 50 a day by day 30. The plans differ in mailbox count and monthly allowances.
What does Warmup Inbox Pro add?
Your own templates, topics, language warmup, ESP targeting and scheduled warmup. Max adds premium support, a technical setup check and an unlimited developer API.
How high can the reply rate go?
Warmup Inbox says up to 25%, 45% and 50% by tier. Warmerly defaults to a 0.3 chance for a first message, adjustable per mailbox.
Who has a developer API?
Warmerly on the Agency plan only. Warmup Inbox has a limited one on Basic and an unlimited one on Max.
Sources
- Warmup Inbox pricing
- Warmup Inbox API page
- Warmup Inbox help centre, sending frequency
- Warmup Inbox help centre, inbox rotation
- Warmup Inbox help centre, Send-only plan
- Warmup Inbox compared with Instantly (its own page)
Warmup Inbox 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
- All features
- Starting price (per month)
- Cost at 5 and 25 mailboxes
- Free plan or trial
- Warm-up volume per mailbox
- Warmup network size
- Spam rescue
- Languages, templates and ESP targeting
- SPF, DKIM, DMARC and blocklists
- Placement test
- Supported mailboxes and sign-in
- Campaign sending
- API access
- Agency and client workspaces
- Data, support and terms
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.