MailerLite vs Substack (2026): Which Newsletter Platform Is Better?

MailerLite vs Substack: the short answer

Choose Substack when you primarily want to publish essays or newsletters, build a reader community, and offer paid memberships without a fixed software subscription. Choose MailerLite when you want subscriber segments, signup funnels, email automations, landing pages and the option to sell paid newsletters as part of a broader marketing system. These tools overlap, but their core workflows are different.

The most useful distinction is how each product charges and what it helps you build. Publishing on Substack is free regardless of reader count; if you enable paid subscriptions, the platform keeps 10% of subscription revenue and Stripe charges processing fees. MailerLite's free tier permits 250 active subscribers, 2,500 monthly emails and three automations; its recurring paid-newsletter integration requires a Comfort or Power plan. Prices and terms below were verified November 3, 2026. This is a documented comparison, not a paid-account benchmark.

Affiliate disclosure: Claim26 may earn a commission if you purchase through its clearly identified MailerLite link, at no extra cost to you. Substack and documentation links in this guide are non-affiliate. This does not change which use cases are recommended.

At a glance: a publishing platform versus a marketing platform

Substack provides an integrated home for posts, emailed newsletters, subscription payments and reader interaction. The product is designed around the publication itself. Recommendations, Notes and native community features can matter to writers whose main product is their writing, although they do not guarantee discovery or growth.

MailerLite starts from an email audience and its marketing journeys. You can publish newsletters, build forms and pages, group contacts, automate follow-up messages and connect sales tools. Its paid-newsletter features overlap with Substack, but MailerLite does not provide the same built-in publishing community. The right comparison therefore begins with how readers find your work and what happens after they sign up.

Free plans: the 250-subscriber limit is important

MailerLite changed its free offering on June 16, 2026. The published Free plan now includes 250 active subscribers, 2,500 monthly email sends, three active automations, three signup forms, one landing page, one website and one digital product or booking. These are separate limits. A 200-person list receiving ten messages consumes 2,000 sends before additional automation emails are counted.

Exceeding the Free subscriber or sending allowance can suspend campaigns or automations until you reduce usage, reach the next applicable cycle or upgrade. This is especially relevant to a writer who wants to publish to thousands of free readers. Substack, by contrast, says publishing is free regardless of subscriber count. That statement is about its publishing offering, not a promise that it provides every advanced sales automation or independent CRM feature.

Example: a new 100-reader newsletter sent once a week could be run on either product, depending on needs. A 3,000-reader publication with no complex automations fits Substack's free-to-publish proposition more naturally than MailerLite's 250-contact free tier. A small business that needs a multi-message lead-magnet sequence may instead benefit from MailerLite's free automation allowance.

Pricing for paid newsletters: subscription fee versus revenue share

Substack says it keeps 10% of each paid-subscription payment, before Stripe payment-processing fees. A writer earning $500 per month in gross paid subscriptions would therefore pay $50 in Substack platform fees; at $2,000 gross the platform fee is $200, excluding processing charges and any applicable tax treatment. These are arithmetic illustrations, not measured earnings or a guarantee of net income.

MailerLite sells Comfort from $12 per month at its lowest advertised subscriber tier and Power from $25 per month, with the amount increasing according to the subscriber tier and billing choice. The official paid-newsletter pages say recurring subscriptions require Comfort or Power and connect to Stripe. MailerLite's own comparison describes a 0% newsletter sales fee on its side, but payment processing still costs money and you still pay the eligible MailerLite subscription.

To compare fairly, use the complete list size, not only paying subscribers. A publication with 100 paying customers and 5,000 free readers must price MailerLite for its relevant subscriber tier, not its $12 entry example. Do not compare a Substack platform fee against an artificially low MailerLite tier, and do not assume the tools offer identical community or automation capabilities.

Which is better for a writer building a paid publication?

Substack gives a writer a cohesive publication workflow: publish a post, email subscribers, choose whether content is free or paid and engage readers in the same ecosystem. Its built-in recommendations and discovery surfaces can be useful for independent writers with no established website. Those features are opportunities, not distribution guarantees, and a publication still needs a consistent editorial proposition.

MailerLite can support paid newsletters but expects you to design more of the acquisition and retention journey yourself. You can connect signup forms, a landing page, payment blocks, segments and follow-up automation. A creator with an established site, a lead magnet, a product catalog and an email-based sales funnel may prefer that flexibility, especially when newsletter revenue is only one of several revenue streams.

If you mainly write thoughtful articles and charge readers for access, start by evaluating Substack. If you are selling courses, downloadable products and recurring newsletters through a single audience-management workflow, evaluate MailerLite Comfort or Power and verify your exact Stripe setup.

Automation and segmentation: where MailerLite has the clearer purpose

MailerLite's product documentation describes a visual automation builder and contact organization through groups and segments. A welcome workflow can connect an opt-in form to a sequence of messages and actions. The Free plan allows three active automations, while Comfort permits 50 and Power offers unlimited active workflows under the current published plan structure; particular triggers and features may differ by plan.

Substack's core publishing experience is different. Readers subscribe to a publication and receive posts, while features such as recommendations, chats and Notes encourage engagement around the creator. These are not a like-for-like substitute for conditional lead nurturing, marketing attribution, abandoned-cart messages or multi-stage ecommerce sequences. If those are critical tasks, compare the actual workflow steps before choosing a platform.

Practical check: write down your desired subscriber journey from signup to first purchase, including triggers, wait times, tags and follow-up criteria. A simple weekly publication may not need a marketing automation engine; a customer-acquisition funnel usually does.

Landing pages, audience ownership and reader discovery

MailerLite Free currently provides one landing page, up to three active forms and a small website. A paid tier can expand the number of pages, forms and workflows. This is useful when you drive traffic from a separate WordPress site, YouTube channel, partnership or advertisement and want a dedicated page for each offer.

Substack hosts your publication and provides a reader ecosystem through which your work can be found and shared. It also publishes export tools for posts and subscriber lists, so starting there does not necessarily mean losing access to your subscriber emails later. However, discovery algorithms, ranking and recommendation behavior are not guarantees of subscribers or sales.

Ownership should be understood operationally: check your domain setup, the export format for email addresses and posts, subscription-payment arrangements, deliverability configuration and the ability to rebuild the same experience elsewhere. Exporting an email list is not the same as moving active paid billing credentials or preserving every historical link.

A migration checklist before leaving either platform

Substack's help center explains how to export subscribers as a CSV from the Subscribers dashboard. It also documents importing lists from another service with confirmation that those people opted in. When moving away from Substack, export posts and subscriber data first, check exactly which fields are present and preserve opt-out or suppressed-contact information. Do not treat an exported email address as permission to send a completely different marketing campaign.

MailerLite can import permitted contacts from CSV, but list segments, automations, delivery history and recurring billing do not automatically map one-to-one. Before switching, test one small segment, reproduce the relevant subscription pages, verify domain authentication and run a delivery test. If paid members are involved, plan the renewal and access transition explicitly rather than promising an invisible migration.

Keep the old publication and its public links accessible until the new flow works. Avoid running both automated welcome streams at the same time; ensure readers can unsubscribe and that paying customers know what is changing.

SEO and distribution: a website is not a mailing list

A Substack publication can have searchable web pages and a subscriber email channel, but search visibility is still subject to ordinary ranking factors. Substack says some SEO features, including Google Search Console verification and sitemaps, become available as a publication grows. Do not assume every new publication gets all technical SEO controls immediately.

MailerLite offers landing pages and website tools but is primarily an email marketing system. Whether these pages rank depends on their content, site configuration, links and how your audience finds them. If organic search traffic is central to your business, compare domain control, canonical URLs, page editing, redirects and the ability to connect your existing site instead of relying only on a vendor's SEO claims.

Three practical use cases to decide quickly

Case A: a solo writer publishes a weekly essay to 4,000 free readers and may introduce a paid tier later. Substack is a sensible first platform to evaluate: the publishing model is free to start and its native reader network is aligned with that goal. The writer should still understand the 10% paid-subscription fee before monetizing.

Case B: a consultant collects 150 leads through an ebook form, sends an educational welcome sequence and segments readers by service interest. MailerLite Free is worth testing because its allowance includes three active automations, although campaign volume and plan-specific triggers must be checked. Substack would not be the obvious first choice for that kind of acquisition workflow.

Case C: an established creator sells a course and a paid newsletter to 500 paying readers and 8,000 free readers. MailerLite's paid plan and Stripe integration could be economical, but only after calculating the appropriate tier for all contacts and the true cost of the site's other tools. Substack offers a simpler publication-centered alternative whose fee scales with paid subscription revenue; a controlled account trial is needed to assess editing and community fit.

Frequently asked questions about MailerLite and Substack

Is Substack really free? Publishing is free regardless of the number of subscribers. Once you enable paid subscriptions, Substack states that it keeps 10% of paid subscription revenue, and payment-processing fees apply separately. Additional taxes and region-specific terms may affect the final amount.

Can you run a paid newsletter with MailerLite Free? MailerLite's current help documentation says selling recurring subscriptions and paid newsletters through its Stripe integration requires Comfort or Power. Free supports one digital product or booking, but that should not be confused with full paid-newsletter subscription functionality.

Will moving from Substack improve email deliverability? There is no responsible basis for promising that. Inbox placement depends on list quality, permission, sender authentication, sending history, content and mailbox providers. Test using representative addresses, proper consent and the real sender domain.

Can I use both? Yes, but avoid duplicate campaigns and unclear subscriber consent. For example, a creator could maintain a Substack publication and use MailerLite for a distinct product mailing list, provided each list has a clear purpose and respects applicable privacy and marketing requirements.

Final verdict: MailerLite or Substack?

Substack is the better starting candidate for a writer whose main business is publishing content and building a free or paid reader community. Its no-fixed-fee publishing approach is simple to understand, but the 10% share of paid subscription revenue matters as income grows.

MailerLite is the better candidate for a small business or creator who needs forms, segmented contacts, email automations, landing pages and an integrated sales follow-up process. Its Free plan is limited to 250 active subscribers and its paid-newsletter offering requires an eligible paid plan, so choose it for those workflows rather than because an entry price looks cheap.

Before deciding, calculate monthly sending volume, count every active contact, map the subscriber journey and confirm checkout and export rules. Claim26 may receive an affiliate commission on eligible MailerLite signups through its clearly disclosed link, at no extra cost to you. The linked Substack documentation is non-affiliate.