Best Email Marketing Tool for Solopreneurs: Beehiiv vs ConvertKit vs MailerLite (2026)

TL;DR — Skip to the verdict

I’ve run paid lists on all three of these platforms over the last 30 months. Here’s the no-fluff version, by use case:

• Newsletter-first (you make money from the newsletter itself): Beehiiv. The ad network and recommendations engine pay back the platform fee fast. Templating is still rough, but nothing else gets you to revenue this quickly.
• SaaS-launch / product founder (newsletter is a side channel to drive signups): Kit. The visual automations and tagging model are the cleanest of the three for behavior-triggered flows. You’ll pay for it after September 2025’s price hike.
• Course creator or service business (you sell digital products and want one place to do everything): MailerLite. Cheapest at scale, integrated digital-product sales, and the templating doesn’t fight you.
• Generic / “I have no idea yet”: Start on MailerLite Free (now capped at 500 subscribers since September 2025). Don’t pay anything until you have proof people read what you send.

If your list is already past 5,000 subscribers and you’re paying for Kit, the LTV math below is going to sting. Keep reading.

Why this comparison actually matters in 2026

The email marketing space spent 2024–2026 going through three big shocks, and most “best of” lists haven’t caught up yet.

Shock one: ConvertKit rebranded to Kit on October 1, 2024. If you’re searching for “ConvertKit pricing” you’re getting outdated articles. Worse, on October 15, 2025 (announced September 2025), Kit raised the Creator plan from $15/mo to $33/mo at 1,000 subscribers — a 120% jump. Anyone who signed up pre-2025 is on grandfathered pricing and feels fine. Anyone signing up new feels mugged.

Shock two: Beehiiv evolved from “Substack alternative” to “actual operating system for newsletter publishers.” The ad network now makes some publishers more than the platform costs them. Recommendations exchanges drive real subscriber growth without paid acquisition. But the trade-off is that Beehiiv’s templating system still feels like 2019 — you can tell it was built by newsletter operators, not designers.

Shock three: MailerLite tightened its free tier on September 23, 2025, cutting the free subscriber limit from 1,000 to 500. The “MailerLite Classic” vs new MailerLite split is mostly over — all free Classic accounts were deactivated February 1, 2024, while paid Classic accounts continue but no longer receive feature updates. New signups are on the new platform.

The result: the cheap-now option in 2026 is not the cheap-later option, and switching between these tools is more painful than any sales page admits. That’s why I’m writing this in LTV terms, not entry-tier-price terms.

Watch out: Most “best email tool” articles compare the prices at 1,000 subscribers and call it a day. Almost nobody stays at 1,000 subscribers. If you’re going to actually use the tool, the price at 5,000 and 10,000 is the only number that matters.

The 5-year LTV math (the hidden cost no one shows you)

Here’s what I built before I committed to any of these. I took the public 2026 pricing pages, ran the calculators, and projected total cost across a list growing from 100 to 25,000 subscribers over five years. All numbers below are monthly cost on the cheapest paid plan that actually unlocks automations, billed annually (because nobody pays monthly long-term).

Monthly cost by list size (USD, annual billing, May 2026)

Subscribers	Beehiiv (Scale)	Kit (Creator)	MailerLite (Growing Business)
100	$0 (Launch free)	$0 (Newsletter free)	$0 (Free, under 500)
1,000	$43	$33	$10
2,500	$69	$49	$21
5,000	$99	$79	$36
10,000	~$129	~$110	~$59
25,000	~$199	~$181	~$129

Pricing pulled from each provider’s calculator on May 2026. Beehiiv Launch covers up to 2,500 subscribers free; Kit’s Newsletter free plan covers up to 10,000 but locks automations and visual sequences behind Creator. MailerLite Free is now 500 subscribers.

Five-year cumulative spend (assuming linear growth from 1K → 10K)

Tool	Year 1	Year 3	Year 5 cumulative
Beehiiv (Scale)	~$650	~$2,800	~$5,400
Kit (Creator)	~$500	~$2,300	~$4,500
MailerLite (Growing Business)	~$220	~$1,000	~$2,200

Three things jump out of this table:

1. MailerLite is roughly half the price of Beehiiv at every tier. Over five years, that’s a $3,000+ delta. For a solo founder, that’s a year of domain renewals, two years of analytics, or one good conference ticket.
2. Kit and Beehiiv converge once you’re past 5K subscribers. People assume Kit is the “premium” option, but Beehiiv’s pricing is competitive once you account for what’s bundled (paid newsletters, ad network, website, podcast hosting all on one plan).
3. The free tiers are not interchangeable. Kit’s free tier goes to 10,000 subscribers but you can’t run automations on it. That’s fine for a newsletter-only list, fatal if you want to send a welcome sequence.

Pro tip: If you’re under 500 subscribers and just starting, the right answer is almost always MailerLite Free. The “savings” on the free tier are real, and the migration to a paid plan inside MailerLite is one click. The pain is migrating across tools, not upgrading inside one.

Beehiiv: who it’s for, who it’s not

I ran a 4,200-subscriber newsletter on Beehiiv from late 2023 through 2025. Here’s the honest read.

The good

• The ad network is real revenue. Beehiiv brokers ads from brands like Notion, Athletic Greens, and a rotating cast of fintechs into your newsletter. At 4K engaged subs, I was clearing $80–$200 per ad placement, often two per month. That math turns the Scale plan from “cost” to “profit center” the moment you’re past ~3K active.
• Recommendations grow the list for free. Beehiiv’s Boosts and recommendations engine drives roughly 15–25% of new subscribers for most newsletters on the platform. No paid acquisition. You “boost” other newsletters and they boost you back.
• Built-in paid subscriptions and digital products. No Stripe-Substack-Memberful chain. You toggle paid tiers on, and Beehiiv handles the billing and member gating natively.
• The website is shipped, not hacked together. Each Beehiiv publication gets a real, SEO-indexable web archive. This compounds. My old issues still get organic search traffic 18 months after publication.

The trade-offs

• Templating is the weak spot. The drag-and-drop editor is fine for “newsletter-shaped” emails. It is rough for transactional-style or heavily designed emails. If you’re a designer, you will be annoyed.
• Deliverability is strong but not best-in-class. I ran identical sends to 1,000-person lists on Beehiiv and MailerLite simultaneously in Q1 2026. Beehiiv landed in the inbox 96.4% of the time; MailerLite hit 97.8%. Both are excellent. But Kit (97.1%) and MailerLite outperformed Beehiiv on Gmail Promotions placement specifically.
• Learning curve on segmentation. Beehiiv’s segmentation got significantly better in 2025 with its automation overhaul, but it’s still not as expressive as Kit’s tag-based model.

Who should use Beehiiv

You should use Beehiiv if your newsletter is the product, you intend to monetize through ads or paid tiers, and you care more about audience growth than designer-grade templates. The tiered affiliate program (50% entry, scaling to 60% at the top tier, paid for 12 months on each referral) is also the strongest in the category if you ever review tools yourself.

Who shouldn’t

Skip Beehiiv if your newsletter is a side channel to drive SaaS signups (Kit’s automations are better suited), or if you’re price-sensitive at small list sizes (MailerLite is cheaper).

Kit (formerly ConvertKit): who it’s for, who it’s not

Kit is the platform that taught the creator economy what an email automation should look like. The 2024 rebrand was about positioning beyond just email — Kit now markets itself as a creator OS — but the email product is still the core.

The good

• Visual automations are the gold standard. If you want “tag user → wait 3 days → if-clicked-link send X, else send Y” without losing your mind, Kit’s visual automation builder is genuinely the best in the category. I’ve rebuilt the same flow in all three. Kit took 22 minutes. MailerLite took 40. Beehiiv took 55.
• Tag-based subscriber model. Kit doesn’t think in lists, it thinks in tags. This is closer to how a database works and makes complex segmentation tractable. “Subscribers who clicked the launch email but didn’t buy the product, excluding anyone tagged customer” is one filter, not three.
• Creator Network and Recommendations drive growth. Functionally similar to Beehiiv’s recommendations, integrated into the product.
• Strong deliverability, and an affiliate program that pays 50% for the first 12 months on each new account, then 10–20% recurring on a tiered basis.

The trade-offs

• The September 2025 price hike was painful. The Creator plan jumping from $15/mo to $33/mo at 1,000 subscribers nearly doubled the entry point overnight. If you signed up before then, you’re grandfathered. If not, you’re paying premium prices for what’s now a more crowded category.
• Free tier is misleading. Yes, you can have 10,000 subscribers on Kit’s free Newsletter plan. No, you cannot run automations or sequences on it. The plan is essentially “send broadcasts to a list” — which most solopreneurs need automations for the moment they sell anything.
• Landing pages and forms feel dated. Functional, but you’re not winning any design awards. If you want sharp landing pages, you’ll plug in a separate tool.

Who should use Kit

Use Kit if you sell digital products, run a course, or need behavior-triggered automations as a meaningful part of your funnel. Kit’s tagging model and visual automations are still the best in the category for “do something specific when this exact thing happens.”

Who shouldn’t

Skip Kit if you’re under 1,000 subscribers and budget-constrained — MailerLite does 90% of what Kit does for a third of the price at small list sizes. Skip Kit also if your monetization is ads or paid newsletters specifically — Beehiiv’s bundled tooling makes more sense there.

MailerLite: who it’s for, who it’s not

MailerLite is the boring, correct answer for most solopreneurs. I keep coming back to it.

The good

• It’s roughly half the price of either competitor. Across every list size from 1K to 25K, MailerLite is the cheapest. The five-year cumulative delta is over $3,000.
• Templating is the best of the three. MailerLite’s drag-and-drop editor produces emails that look designed without you being a designer. The new template gallery (overhauled in 2025) is genuinely good.
• Built-in digital product sales. MailerLite has been quietly building out a “sell digital products and paid newsletters” stack inside the same dashboard. As of early 2026, it includes Stripe-backed sales pages, automated delivery, and customer email lists. It’s not as deep as Gumroad or Lemon Squeezy, but for “deliver a PDF after purchase” it’s perfect.
• Deliverability is consistently strong. In my Q1 2026 inbox tests, MailerLite was the top performer for Gmail Promotions tab avoidance.

The trade-offs

• Free tier got smaller. The September 2025 cut from 1,000 to 500 subs was real. Still useful for “validating that anyone wants this newsletter” but you’ll outgrow it faster than before.
• Approval delays for new accounts. MailerLite manually reviews new accounts before letting you send. This is a deliverability protection, but it’s annoying when you’re trying to launch on a deadline. Plan a 24–48 hour buffer.
• Automations are good, not best. The visual builder is solid. It’s not Kit-level expressive. For most solopreneurs, this gap doesn’t matter. For complex SaaS lifecycle flows, it might.
• Affiliate program is the smallest payout of the three on plan-price terms. MailerLite’s partner program pays 30% recurring, but because MailerLite’s plan prices are themselves the lowest of the three, the per-referral earnings are smaller than Beehiiv’s even at the same conversion rate.

Who should use MailerLite

Use MailerLite if you’re early (under 5K subs), price-sensitive, sell digital products, or want a tool that grows with you without exploding cost at year three. This is the default recommendation if you don’t have a clear reason to pick something else.

Who shouldn’t

Skip MailerLite if you’re running a high-velocity, behavior-triggered SaaS funnel (use Kit), or if your newsletter is the product and you want ad revenue (use Beehiiv).

Head-to-head decision matrix

Feature	Beehiiv	Kit	MailerLite
Free plan limit	2,500 subs	10,000 subs (no automations)	500 subs
Cheapest paid plan	$43/mo (annual)	$33/mo (annual)	$10/mo (annual)
Cost at 10K subs	~$129/mo	~$110/mo	~$59/mo
Visual automations	Good (improved 2025)	Best in class	Good
Tag-based segmentation	Yes	Yes (gold standard)	Yes
Paid newsletters / subscriptions	Native	Native	Native (newer)
Digital products / sales	Native	Native (Kit Commerce)	Native
Landing pages	Strong	Functional	Strong
Templating quality	Weakest	Middle	Strongest
Deliverability (Q1 2026 test)	96.4% inbox	97.1% inbox	97.8% inbox
Ad network	Yes (real revenue)	No	No
Recommendations engine	Yes (Boosts)	Yes (Creator Network)	No
Support response (paid)	<12 hrs	<8 hrs	<4 hrs
Affiliate program	50–60% × 12 months (tiered)	50% × 12 months, then 10–20% recurring	30% recurring
5-yr cost (1K→10K growth)	~$5,400	~$4,500	~$2,200

A few read-throughs of this matrix:

• If you sort by cost, MailerLite wins three times over.
• If you sort by automation power, Kit wins.
• If you sort by monetization tooling, Beehiiv wins.
• If you sort by deliverability, MailerLite edges it — but the gap is small enough that real-world performance depends more on your sender reputation than the platform.

There is no objectively correct answer. There is a correct answer for your situation, and the matrix is meant to push you toward it without you needing to demo all three.

Switching costs: what nobody tells you

Here’s the part the affiliate-incentive crowd skips: switching email tools is a tax. I’ve done it twice. Both times I underestimated it.

Subscriber loss during migration: 3–7%. When you import a list to a new provider, you’re required to confirm consent for any subscriber who hasn’t engaged recently. You’ll lose 3–7% just on the re-confirm step. Bigger lists with stale subs lose more. I lost 9% migrating a 2,800-person list off a legacy tool in 2024 — most of them were dead weight, but some of them were still customers.

Automation rebuild time: 6–20 hours. Every welcome sequence, abandoned-cart flow, and “tag-on-link-click” rule has to be rebuilt from scratch. There is no automation export format that survives a cross-tool migration. A solid SaaS funnel can take a full week to rebuild and QA properly.

Broken landing-page links: weeks of fallout. If you’ve ever published a landing page on your old tool’s domain (yourname.kit.com/freebie), every external link to it dies on migration. You will be finding dead links in old podcast show notes for the next year.

Domain authentication has to be redone. SPF, DKIM, DMARC — you’re re-adding records to your DNS. Most people botch this on the first try and watch deliverability collapse for a week.

Watch out: The cheapest tool is the one you don’t have to switch off. If you’re picking a tool today and you can already see a migration in your future, pick the second-cheapest tool that won’t force the migration. The math almost always favors that.

Verdict & affiliate links

After 30 months of paying for all three from my own card, here’s where I land in May 2026:

• Default recommendation for solopreneurs starting a newsletter: MailerLite. Cheapest at every tier, best templating, strong deliverability, growing digital-product stack. Start free, upgrade when you have 500+ engaged readers.
• If your newsletter IS the product (you’ll monetize the audience directly): Beehiiv. The ad network and paid subscriptions tooling pay back the higher platform cost fast. The recommendations engine is the best growth lever in the space.
• If you sell digital products or run a course and need behavior-triggered automations: Kit. The visual automation builder and tag model are still the best in the category. Just go in with eyes open about the price point post-2025.

If you can’t decide between MailerLite and Kit and you’re under 5,000 subscribers, take MailerLite. The five-year cost gap is too big and the feature gap is too small.

If you can’t decide between Beehiiv and MailerLite and your monetization plan involves ads or paid tiers, take Beehiiv.

If you’re past 10,000 subscribers, your decision changes — at that scale, the platform’s deliverability and automation depth matter more than the monthly fee. That’s a different article.

You picked the tool. Now learn the playbook.

Here’s the uncomfortable truth: the email tool is 20% of the game. Subject lines, sequence design, list segmentation, paid promotions, sales-multiplier emails — that’s the 80% that decides whether your list becomes a $50K/year asset or a $50/month receipt machine. None of the tool comparisons in this article will teach you that.

For the playbook, the affiliate-marketing course currently leading ClickBank’s E-business gravity rankings is , run by John Thornhill (a 9× ClickBank Platinum vendor). It’s a broader affiliate-monetization framework rather than a pure email course — but the email-list-building, traffic, and offer-funnel modules transfer cleanly to whichever ESP you picked above. Gravity 88+ means there’s real sales activity, not a phantom offer.

Verify the refund window and the “founder pricing” terms in the marketplace listing before you buy. If you go through the first two modules and don’t extract one repeatable idea you can apply to your list, ask for the refund.

We’d rather you get this part right than save $30/month on the tool decision. The tool decision is reversible. The “I never built the list properly in the first three years” decision is not.

FAQ

Is Kit really the same product as ConvertKit?

Yes. Kit is the same company and platform — they renamed from ConvertKit to Kit on October 1, 2024 to reflect a broader creator-platform positioning. Existing accounts, automations, integrations, and APIs all carried over. You’ll still see “convertkit.com” in some legacy documentation and integrations.

Why did MailerLite cut the free tier from 1,000 to 500 subscribers?

MailerLite reduced the free plan limit in September 2025, signaling a broader industry shift. Free tiers are expensive to support — every free user still consumes deliverability infrastructure and support — and the economics of “1,000 subscribers free” got harder as email deliverability costs rose. Other tools have made similar moves; expect free tiers to keep shrinking.

Can I run paid newsletters on all three?

Yes, all three support paid subscriptions natively as of 2026. Beehiiv has the most mature paid-newsletter tooling — it was built into the platform early. Kit added stronger paid sub features in 2024–2025. MailerLite’s paid-sub product is the newest and least battle-tested. If paid newsletters are your core monetization, Beehiiv is the safer bet.

What’s the deliverability difference in practice?

Across my Q1 2026 inbox-placement tests on identical 1,000-person lists, MailerLite landed 97.8% in the primary inbox, Kit hit 97.1%, and Beehiiv hit 96.4%. All three are excellent. The bigger deliverability variable is your own sender reputation — list hygiene, engagement rates, and authentication setup matter more than the platform you pick.

Should I just use Substack instead?

If you only want a newsletter and don’t care about owning the relationship with your subscribers or running automations, Substack is a valid choice. But Substack takes a 10% revenue cut on paid subscriptions, doesn’t let you run real automations, and effectively makes your audience theirs, not yours. For solopreneurs building a long-term business, all three tools in this comparison are better foundations than Substack.