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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 not tested yet. Its column below holds only the plan numbers we verified from our September evaluation, clearly marked as untested. We don't give verdicts on untested products. The final recommendation stays blank until the MailerLite evidence exists.

Side by side: pricing and features

  • Free plan price: $0 on both.
  • Contacts on free: systeme.io allows 2,000 (tested); MailerLite allows 250 subscribers (per our September evaluation, to be confirmed in testing).
  • Emails per month on free: systeme.io unlimited (tested); MailerLite 2,500 (per our September evaluation, to be confirmed in testing).
  • Automation on free: systeme.io gives 1 automation rule (tested: email-delivery automations fail under double opt-in, see below); MailerLite: not yet tested (in the test plan).
  • Funnels / landing pages on free: systeme.io 3 funnels (tested); MailerLite: not yet tested (in the test plan).
  • Tags / segments on free: systeme.io 1 tag, hard limit (tested, see below); MailerLite: not yet tested (in the test plan).
  • Double opt-in control: systeme.io uses a per-form checkbox, no account-wide toggle (tested); MailerLite: not yet tested (in the test plan).
  • Entry paid tier: systeme.io Startup at $17/mo (plan number, not tested); MailerLite: not yet tested (in the test plan).

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: not yet tested.*

> Not tested yet — this section fills in after the MailerLite hands-on test. What the test will record: the free-plan limits exactly as shown inside the MailerLite account — subscribers, emails/month, automation rules, landing pages, support level — with screenshots, cross-checked against our September evaluation numbers (250 subscribers / 2,500 emails per month). It will also hit the contact-organization limit on purpose (groups/segments/fields) and capture the exact limit message, the way we captured systeme.io's "Your plan does not allow you to create more tags."

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: not yet tested.*

> Not tested yet. This is the comparison's headline test: systeme.io scored 0 deliveries across 3 confirmed contacts. The MailerLite test will build a welcome automation and verify end-to-end whether the automation email actually arrives after the test subscriber confirms — recording the trigger types available on free, step/branch limits, any upgrade gates hit, delivery timing, and the sender name/address shown. If it fails, the page will document exactly what happened.

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: not yet tested.*

> Not tested yet. The hands-on test will build one embedded form and one landing page on the free plan, and record what the free tier actually gives: templates available, which fields can and can't be added, embed code options, and where the double opt-in setting surfaces in the form builder. The comparison needs MailerLite's trade-offs, not just systeme.io's — expect at least 3 honest friction points here once the test runs.

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: not yet tested.*

> Not tested yet. The hands-on test will document the full subscriber journey: the confirmation email's content and wording, the landing page after the confirmation click, what happens to unconfirmed contacts, and the exact location and default state of the double opt-in toggle (global or per-form/per-group).

Which should you choose?

> No verdict yet — we don't recommend products we haven't tested. This section stays empty until the MailerLite evidence exists, at which point it gets a direct recommendation with the tested reasons, plus a fit-check in the style of the guides ("use X if / pick Y if").

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 September evaluation put it at 250 subscribers and 2,500 emails per month. That's 10 emails per subscriber per month at the cap, which covers a weekly newsletter for a starter list. Whether the automation and segmentation hold up is exactly what the hands-on test will determine.

*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 on either platform yet. We'll answer this after the MailerLite test; we don't guess.

*When will the MailerLite results be in?*

The findings land after the hands-on test session; this entry fills in then.

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 pending the hands-on test. No MailerLite affiliate link will appear here until testing is complete.