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systeme.io vs MailerLite: Which Free Plan Actually Delivers?

If you're a small business owner picking your first email tool, these are the two free plans that keep coming up: systeme.io with its generous-sounding free tier, and MailerLite with its reputation as the beginner-friendly email specialist. This page compares them the way we compare everything on FigFroot: by testing, not by reading feature lists.

Here's where the testing stands: systeme.io is fully tested. I ran 6 controlled signups through a real account (automation, landing pages, tags, double opt-in) and screenshotted every step. The findings below link to the full guides. MailerLite is tested too — one controlled end-to-end signup through a free account on Oct 22, 2026 (welcome automation, forms, landing pages, double opt-in, plan limits), logged step by step in our test notes. MailerLite's column below holds the plan numbers as shown inside the account on test day, cross-checked against our September evaluation (250 subscribers / 2,500 emails per month — confirmed in billing), with the free-plan usage caps re-verified in-account after the trial lapsed (Nov 6, 2026). The final recommendation is written from both test runs.

Side by side: pricing and features

  • Free plan price: $0 on both.
  • Contacts on free: systeme.io 2,000 (tested); MailerLite 250 subscribers (verified in-account on test day).
  • Emails per month on free: systeme.io unlimited (tested); MailerLite 2,500 (verified in-account on test day).
  • Automation on free: systeme.io 1 automation rule (tested: email-delivery automations fail under double opt-in); MailerLite: welcome automation DELIVERED ~2 min after confirmation (tested, Oct 22, 2026 — see below).
  • Funnels / landing pages on free: systeme.io 3 funnels (tested); MailerLite: embedded form + unpublished landing page draft built; 30 landing page templates, AI builder offered (tested, Oct 22, 2026). Free-plan caps verified in-account post-lapse (Nov 6, 2026): 3 forms, 1 landing page, 1 website.
  • Tags / segments on free: systeme.io 1 tag, hard limit (tested, see below); MailerLite: NO tags — Groups, Segments, Fields only. 10 groups + 1 segment created, no limit or upsell at any point (tested; free-plan group ceiling unknown).
  • Double opt-in control: systeme.io per-form checkbox, no account-wide toggle (tested); MailerLite: per-form + per-page, ON by default, no global switch; the account-level toggle covers API only. Trial locks confirmation-email editing (default subject "Confirmation email") (tested).
  • Entry paid tier: systeme.io Startup $17/mo (plan number, not tested); MailerLite Comfort $12/mo, Power $25/mo at the 500-subscriber tier (in-account, Oct 22, 2026).

Free-tier limits, compared

Free plans are defined by their walls. Here are the ones I actually hit in systeme.io, with the exact behavior, next to what the MailerLite test will check.

systeme.io (tested):

  • 1 automation rule. Creating a second returns "You have exceeded the limits of your plan." One rule means one shot. Design around it.
  • 1 tag. A second tag attempt returns the red error "Your plan does not allow you to create more tags." One tag = one segment; "untagged" becomes your second audience.
  • 3 funnels. Enough for an opt-in funnel plus room to experiment, but it's a ceiling.
  • "Powered by" branding on pages and emails. Removal needs a paid plan.
  • Confirmation links are single-use with no resend button, and unconfirmed contacts auto-delete after 24 hours.

MailerLite (tested Oct 22, 2026; free-plan caps verified in-account Nov 6, 2026, after the trial lapsed):

  • 250 subscribers, 2,500 emails/mo, $0 — as shown in billing on test day and re-confirmed post-lapse.
  • Free-plan usage caps, verified in-account Nov 6, 2026 (Plan and billing > Usage details and the "Plan usage" panel agree): 3 automations · 3 forms · 1 landing page · 1 website · 1 digital product. The trial-era figures seen during the trial window (1,000 automations · 500 landing pages · 500 forms · 500 websites) were trial limits, not free-plan limits, and are retired — never quoted as free-plan facts.
  • No tags. 10 groups + 1 segment created — no limit or upsell message at any point. (systeme.io hard-errors at 1 tag: "Your plan does not allow you to create more tags.")
  • Trial friction that shapes the free plan: during the trial the header said "Trial — 14 days left" while billing said "Free" (post-lapse, Nov 6, the header reads "Free plan"); clicking that "Trial" label destroyed the session and forced a full re-sign-in; and the usage counters contradicted reality (0 sends / 0 forms / 0 landing pages shown after all three existed).
  • Untested-freeze rule held: the confirmation email can't be edited on trial — default subject is literally "Confirmation email."

Automation compared

This is the section that matters most, because it's where systeme.io surprised us.

systeme.io (tested end to end): The standard tutorial pattern: trigger "funnel step form subscribed," action "send email" or "subscribe to campaign." Delivered 0 emails across 3 confirmed signups. The trigger fires while the contact is still unconfirmed, the action is suppressed, and nothing re-fires after confirmation. Rule history stayed empty; the campaign showed 0 contacts, 0 emails. The working pattern is a thank-you-page redirect with a download button. Tested clean across multiple runs. Full evidence: How to Set Up Email Automation in systeme.io (Tested End to End).

MailerLite (tested end to end, Oct 22, 2026): Welcome automation "ML Test Welcome" (trigger: subscriber joins group), activated BEFORE the test subscriber confirmed. Confirmation recorded 09:30:27 UTC; welcome email in the Gmail inbox ~2 minutes later. Automation log: Started 1, Completed 1, Failed 0. No step limits, no upgrade gates hit. Sender shown: FigFroot <figfroot04.gmail.com@send.mailerlite.eu>.

The comparison's headline result: systeme.io's free plan delivered 0 automations across 3 confirmed signups; MailerLite delivered on the first try.

Ease of use

systeme.io (tested): The funnel builder is drag-and-drop done right. Blocks snap into rows, text edits inline, and there's a mobile preview toggle plus a funnel-level A/B test tab. The friction is in the details: double opt-in buried per-form, the consent checkbox's placeholder validation message ("Message if box remains unticked"), tag assignment hidden in the Tags panel instead of the contact Actions menu. Full build walkthrough: How to Build a Landing Page in systeme.io (Tested End to End).

MailerLite (tested Oct 22, 2026): Embedded form built from the "CLASSIC" template; embed offered as JavaScript snippet, HTML, or show-on-click, plus a share URL. Landing page draft built on a MailerLite-hosted subdomain with drag-and-drop editing, 30 templates in the gallery, and an AI builder offered. Honest friction, tested: the "Add field" button has no type picker — it appends default fields in a fixed order (Name, then Last name); the session died once just from clicking the "Trial 14 days left" label; first loads are skeleton screens with stray "Server error" labels; and there's no tags vocabulary at all — "tag" in the UI means merge tags like {$name}, which collides with what email marketers expect the word to mean.

Deliverability notes

systeme.io (tested): Double opt-in confirmation emails ("Important: confirm your subscription") arrived within 1–2 minutes in every test run. Delivery of the confirmation works; delivery by automation rules under double opt-in does not (see above). How double opt-in is switched on per form: How to Turn On Double Opt-In in systeme.io. Tags as the organizing unit: How to Organize Your Email List with Tags in systeme.io (Tested End to End).

MailerLite (tested Oct 22, 2026): The double-opt-in journey: form success message says "You have successfully joined our subscriber list" BEFORE confirmation — misleading. Status sits at "unconfirmed" until the click. Confirmation email from FigFroot <figfroot04.gmail.com@send.mailerlite.eu>: "Thank you for your interest in our newsletter!" / "Confirm your email address" / button "Confirm your email". Post-click: a MailerLite-hosted thank-you page; subscriber flips to active. No global double-opt-in switch: per-form toggle (ON by default) plus a dedicated Double opt-in tab, and a per-landing-page toggle (ON by default); the one account-level toggle covers API and integrations only. The trial gates the confirmation email's editing — its subject ("Confirmation email") can't be changed on trial.

Which should you choose?

This recommendation is written from both test runs: 3 controlled signups on systeme.io's free plan (Oct 2026), 1 on MailerLite's (Oct 22, 2026).

Use MailerLite if your list is small (under 250) and your welcome email has to go out on the free plan — its welcome automation delivered ~2 minutes after confirmation in our test, where systeme.io's delivered zero. The trade-offs: no tags (Groups/Segments/Fields only), 2,500 emails a month, and a confirmation email you can't edit on trial.

Use systeme.io if you need 2,000 contacts and unlimited sends for free and can build around one automation rule and one tag — the walls are hard but the headroom on contacts is unmatched at $0. The trade-off: email-delivery automations failed under double opt-in in our tests; use the form-level rule pattern and test every send like a stranger.

Don't pick on "unlimited" alone. systeme.io's unlimited sends don't help when the automation that would send them can't fire. And MailerLite's delivery win rests on one end-to-end signup — we say that openly. The free-plan usage caps above (3 automations · 3 forms · 1 landing page · 1 website) were verified in-account after the trial lapsed (Nov 6, 2026).

Affiliate terms

MailerLite affiliate program (not joined yet). 30% recurring lifetime commission, 45-day cookie, paid weekly once your balance clears $100 from at least 2 referrals (each sale held 30 days for refunds). Application takes up to 10 business days; you don't need to be a customer. — figures from MailerLite's official affiliate terms, checked Oct 22, 2026.

For context: systeme.io pays 60% lifetime recurring (€30 minimum, no application), so it stays the better rate for this niche. MailerLite is the slowest to first dollar of the two — two paying referrals plus the $100 threshold before the first settlement.

FAQ

Is systeme.io's free plan really unlimited emails?

It advertises 2,000 contacts and unlimited email sends. But the practical limits are 1 automation rule, 1 tag, and 3 funnels, all of which I hit in testing. "Unlimited sends" doesn't help if the automation that would send them can't fire under double opt-in.

Is MailerLite's free plan enough for a small list?

The hands-on test confirmed 250 subscribers and 2,500 emails per month in-account — that's 10 emails per subscriber per month at the cap, which covers a weekly newsletter for a starter list. Automation held up: the welcome email arrived ~2 minutes after confirmation. Organization is groups/segments/fields, no tags; 10 groups created, no limit hit. The free-plan caps are tight but now verified in-account (Nov 6, 2026, after the trial lapsed): 3 automations, 3 forms, 1 landing page, 1 website, 1 digital product. One caveat: the confirmation email can't be edited on trial ("Confirmation email" is the subject you get).

Why does this comparison hinge on one automation test?

Because systeme.io's officially documented automation pattern failed in our tests (0 deliveries across 3 confirmed contacts). If MailerLite's welcome automation delivers after confirmation, that's the single most important difference between the two free plans. If it fails too, that's equally worth knowing.

Can I start on one and switch later?

Not tested as a migration on either platform — we don't guess at the export/import journey. Organization-wise, know this: systeme.io organizes by 1 tag on free, MailerLite has no tags at all (groups/segments/fields), so your segmentation design won't transfer one-to-one.

When will the MailerLite results be in?

In — the hands-on test ran Oct 22, 2026 (one end-to-end signup, logged step by step), and the free-plan usage caps were re-verified in-account after the trial lapsed (Nov 6, 2026): 3 automations, 3 forms, 1 landing page, 1 website, 1 digital product, 250 subscribers, 2,500 emails/mo.

Next action

Affiliate disclosure: FigFroot earns a commission if you sign up through the link below, at no extra cost to you. It's how we fund the hands-on testing behind comparisons like this.

Create your free systeme.io account and test the free-plan limits yourself. The guides above show every step: Try systeme.io free

systeme.io plan details verified in-account. MailerLite findings tested Oct 22, 2026 (one end-to-end signup); free-plan usage caps verified in-account Nov 6, 2026, after the trial lapsed. MailerLite affiliate terms from their official program page, checked Oct 22, 2026 — FigFroot isn't in the program yet, so no affiliate link here.