The Lemwarm Insider’s Guide
Everything we know about Lemwarm in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Lemwarm
The Insider’s Guide
Email warm-up and deliverability monitoring, priced per inbox
Every plan, grade, refund rule and rival among cold outreach tools, read from Lemwarm’s own pages.
Made by lempire · checked Nov 13, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Lemwarm’s own pages, its app-store listings and our grades. Every fact in it is on Lemwarm’s page too, where it is kept up to date. Checked Nov 13, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
1.6
GPA, above 5 of the 81 other cold outreach tools we grade
Lemwarm warms up sending inboxes by exchanging emails with a network it says spans more than 20,000 real domains, and it tracks a deliverability score. It also checks technical setup and sends alerts and tips. It is made by the company behind lemlist, and every lemlist plan includes it.
To get you started, here are 8 things to know about Lemwarm, taken from its own pages and our grades.
You connect each mailbox and read the reports.
- 1
Best for warming up sending inboxes
Lemwarm warms up your sending inboxes by swapping emails with a network it says spans over 20,000 real domains, and it tracks a deliverability score.
- 2
Paid plans start at $24 a month
As its pricing page puts it: $24 per email / month, billed yearly ($29 billed monthly).
- 3
It runs on Web
Web.
- 4
Automatic warm-up
Connects an inbox and exchanges warm-up emails with a network of 20,000+ domains in 100+ countries, which the vendor describes as real inboxes.
- 5
Deliverability score and alerts
Tracks a deliverability score and sends alerts about spam risks based on your sending behavior and content.
- 6
Technical setup check
Looks for missing or misconfigured SPF, DKIM, DMARC and MX records, which the vendor lists as a common cause of poor inbox placement.
- 7
A 1.6 GPA, above 5 of 81
That is against the other cold outreach tools we grade, on value, the free plan, features, ease of use and platforms.
- 8
Keep it
To replace Lemwarm you would be making a network of real inboxes that open and answer your emails. That is not a weekend's work, with an AI app builder or without one.
Lemwarm at a glance
- Pricing
- Paid, from $24 per email / month, billed yearly ($29 billed monthly)
- Free plan
- No
- Free trial
- None stated
- Runs on
- Web
- Made by
- lempire
- Category
- Cold Outreach
- Our grade
- 1.6 GPA, weak
The report card
Best for warming up sending inboxes
Lemwarm warms up your sending inboxes by swapping emails with a network it says spans over 20,000 real domains, and it tracks a deliverability score. It does that one job. It is $24 a month for each inbox on yearly billing, with no free plan or trial, and personalized warm-up emails need the $40 Smart plan.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | B | $24 an inbox a month on yearly billing ($29 monthly), just under the $25 that opens the cheaper quarter of cold-outreach tools. It is priced per inbox, so ten inboxes cost $240. |
| Free plan and trial | F | No free plan and no trial on the pricing page. |
| Features | D | Warm-up, a deliverability score and a setup check, and nothing else. It needs a separate tool to find leads and send campaigns. |
| Ease of use | C | No store rating on record. You connect each mailbox and read the reports. |
| Platforms and integrations | C | Web only, and the listing names no integrations. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
Who Lemwarm is for
- Fits if you send cold email from a few inboxes and want them warmed up
- Works for lemlist users, since every lemlist plan already includes it
Who it is not for
- Skip it if you want to try it first, as there is no trial or free plan
- Pricey if you run many inboxes, because the price is per connected email address
- Too light for finding leads or sending campaigns, which need other tools
- Watch out: personalized warm-up emails and warming your own templates need Smart at $40 an inbox
Good to know
Good for
- Senders who already have a sequencer and only need warm-up
- lemlist customers, who get lemwarm with their plan
- Small setups with a handful of inboxes
Worth knowing
- Pricing is per connected email address, so the cost grows with each mailbox.
- The Smart plan is needed for personalized warm-up emails and warming up your own templates.
- The pricing page lists no free plan or free trial.
- Teams of more than 10 users are quoted individually.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
$24
A month to start
Lemwarm is a paid product, starting at $24 per email / month, billed yearly ($29 billed monthly).
No free plan and no trial on the pricing page.
Essential
$24
per email / month, billed yearly ($29 billed monthly)
Automatic warm-up, a technical setup check, deliverability reports and human warm-up emails. A quarterly option saves 10%.
Smart
$40
per email / month, billed yearly ($49 billed monthly)
Adds personalized warm-up emails, warm-up of your own email templates, custom alerts and a network tailored to your industry.
More than 10 users
Custom
Everything in Smart with volume pricing and priority support, sold through sales.
Read from lemwarm.com on Nov 13, 2026.
Ways to pay less
Annual discount
Save 20% with yearly billing
Yearly billing is marked 20% off the monthly price, and quarterly billing is marked 10% off.
Stated on lemwarm.comOther savings
Included with every lemlist plan
The pricing page says every lemlist plan includes lemwarm at no extra charge.
Stated on lemwarm.com
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
1
Place it runs: Web
Email warm-up and deliverability monitoring, priced per inbox. Here is what it does, as its own site describes it, and what it covers: email campaigns, inbox warm-up, dMARC.
Warm-up, a deliverability score and a setup check, and nothing else.
- Automatic warm-up
- Connects an inbox and exchanges warm-up emails with a network of 20,000+ domains in 100+ countries, which the vendor describes as real inboxes.
- Deliverability score and alerts
- Tracks a deliverability score and sends alerts about spam risks based on your sending behavior and content.
- Technical setup check
- Looks for missing or misconfigured SPF, DKIM, DMARC and MX records, which the vendor lists as a common cause of poor inbox placement.
- Daily tips and reports
- Gives daily advice on content, sending and setup, with detailed deliverability reports available at any time.
- Template warm-up on Smart
- The Smart plan can warm up your real email templates and use personalized warm-up emails and an industry-matched network.
Where it runs
- Web
What it works with
Its own pages name no integrations.
Lemwarm is made by lempire.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
5/81
Other cold outreach tools it is graded above
Lemwarm's GPA of 1.6 is higher than 5 of the 81 other cold outreach tools we grade, and level with 12.
It stands best on value for money (B, above 56 of 81) and worst on free plan and trial (F, above 0).
Its paid plans start at $24 a month, against a middle price of $39 for the category: 17 of the 73 others that charge start lower.
On features, ease of use and platforms it scores 1.7 out of 4. 16 tools score higher and cost less.
Each grade against the category
Every bar is all 82 cold outreach tools we grade, cut by the letter each got. Lemwarm’s own letter is outlined.
- BValue for moneyAbove 56 of 81
- FFree plan and trialAbove 0 of 81
- DFeaturesAbove 0 of 81
- CEase of useAbove 1 of 81
- CPlatforms and integrationsAbove 1 of 81
Price against what you get
Each dot is one of 74 cold outreach tools. Further left costs less; higher up scores better on features, ease of use and platforms. Lemwarm is the marked dot.
What paid plans start at, a month (each step along is roughly double) →
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
Keep it
To replace Lemwarm you would be making a network of real inboxes that open and answer your emails. That is not a weekend's work, with an AI app builder or without one.
That makes this kind of software worth paying for, not this one in particular: 64 of the 81 other cold outreach tools grade higher. It costs $288 a year.
What you could not
- A network of real inboxes that open and answer your emails.
- Newsletters sent to thousands of people that still reach the inbox.
- Reading the reports inbox providers send about your domain.
What this rests on. Lemwarm’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
Warmbox, Mailivery, Folderly and lemlist
The 4 tools Lemwarm is most often weighed against, with where each one differs from it.
- 1.8GPA
Warmbox
From $15/mo
Email warm-up through a private network of inboxes.
- Lemwarm also covers email campaigns and dMARC.
- Warmbox also covers reports.
- 2.2GPA
Mailivery
Free trial · from $21.75/mo
Email warm-up priced by daily volume, with unlimited mailboxes.
- Lemwarm also covers email campaigns and dMARC.
- Mailivery also covers email verification.
- 2.0GPA
Folderly
Free plan · from $79/mo
Email deliverability tools: placement tests, fixes and monitoring.
- Folderly has a free plan. Lemwarm does not.
- Lemwarm also covers email campaigns and inbox warm-up.
- Folderly also covers reports.
- 2.8GPA
lemlist
Free trial · from $55/mo
Cold email and LinkedIn sequences with a built-in lead database.
- Only lemlist lists a browser extension.
- Lemwarm also covers inbox warm-up and dMARC.
- lemlist also covers templates and AI agents.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
12
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is Lemwarm free?
No. Lemwarm is a paid product, starting at $24 per email / month, billed yearly ($29 billed monthly).
How much does Lemwarm cost?
Lemwarm lists 3 plans. Essential: $24 per email / month, billed yearly ($29 billed monthly).
What platforms does Lemwarm work on?
Lemwarm is available on Web.
Does Lemwarm offer any discounts?
Lemwarm publicly lists the following: Save 20% with yearly billing; Included with every lemlist plan.
Does Lemwarm have an Android app?
No Android app was listed when its pages were read on Nov 13, 2026. Lemwarm is listed for Web.
Does Lemwarm have an iPhone app?
No iPhone app was listed when its pages were read on Nov 13, 2026. Lemwarm is listed for Web.
Is Lemwarm open source?
Lemwarm is not described as open source on its own site, as read on Nov 13, 2026.
Who makes Lemwarm?
Lemwarm is made by lempire.
What are the alternatives to Lemwarm?
The closest alternatives to Lemwarm in our directory are Warmbox, Mailivery, Folderly and lemlist.
How does Lemwarm compare with other cold outreach tools?
Lemwarm's GPA of 1.6 is higher than 5 of the 81 other cold outreach tools we grade, and level with 12.
Is Lemwarm good value for money?
ToolGPA grades Lemwarm B for value for money. Its paid plans start at $24 a month, against a middle price of $39 for the category: 17 of the 73 others that charge start lower.
Could I make my own version of Lemwarm?
To replace Lemwarm you would be making a network of real inboxes that open and answer your emails.
Where this guide comes from
The prices, plans, platforms and features were read from Lemwarm’s own pages on Nov 13, 2026, and the grades were given on Nov 13, 2026. Graded from this listing, whose facts were read from lempire's own pages on 13 November 2026. Not based on using the product, and shorter than our full reviews.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by lempire. Prices change, so check lemwarm.com before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
7,721
Tools graded, in 95 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
7,721
tools graded
95
categories
739
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Lemwarm, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/lemwarm
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Lemwarm: The Insider's Guide", checked Nov 13, 2026. https://toolgpa.com/tools/lemwarm
Know someone choosing between cold outreach tools?
Send them this guide: toolgpa.com/tools/lemwarm/guide
ToolGPA elsewhere: youtube.com/@toolgpa
See our other guides
The best-graded cold outreach tools after Lemwarm, each with an Insider's Guide of its own.
- Cold Outreach Insider's GuideEvery one of the 82 cold outreach tools we grade, compared
- lemlist Insider's GuideCold email and LinkedIn sequences with a built-in lead database2.8 GPA
- Salesforge Insider's GuideCold email and LinkedIn sequences with AI-written messages2.8 GPA
- Saleshandy Insider's GuideCold email sequences with a B2B lead database in every plan2.8 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Lemwarm’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Lemwarm is a trademark of its owner, and this guide is not made, paid for or approved by lempire. Prices and plans change: check lemwarm.com before you buy.