Free email marketing plans exist on a spectrum from genuinely generous to functionally useless. Some give you enough to run a real welcome sequence and abandoned cart flow at zero cost. Others let you send a handful of emails before hitting a wall that requires an upgrade to do anything useful. This comparison covers the actual free tier of each major platform in 2026: what is included, what is blocked, and when the free plan runs out for a typical growing store.
Visisto Free: 15,000 emails/month, 1 automated sequence
Visisto's free plan sends up to 15,000 emails per month with no contact limit. You get one automated email sequence (ideal for a welcome sequence or abandoned cart flow), access to all 20 capture widget types including the spin wheel, and the full email editor. The free plan is designed to let you generate real revenue before you pay anything. A store with 500 subscribers sending 3 emails per month to their full list uses only 1,500 of the 15,000 monthly send allowance. The upgrade to Growth at £49/month unlocks 150,000 sends per month and unlimited sequences.
Mailchimp Free: 500 contacts, 1,000 sends/month
Mailchimp's free tier is significantly more restricted in 2026 than it was in 2019 when the platform was growing. The current free plan caps you at 500 contacts and 1,000 sends per month with Mailchimp branding on all emails. Automations are limited to a single-step welcome email — no multi-step sequences, no conditional logic. For a new store getting its first 200 subscribers, Mailchimp free is functional. For any store with an established list or the ambition to run proper flows, the 500-contact ceiling is hit within weeks of growth.
Klaviyo Free: 500 contacts, 500 emails/month
Klaviyo's free tier allows 500 active profiles and 500 email sends per month, which is sufficient only for testing the platform rather than running a real email program. The counterpoint is that Klaviyo's free plan includes full flow builder access, so you can build and test complex multi-step sequences before your list grows large enough to require a paid plan. Once you exceed 500 contacts, Klaviyo's pricing jumps to approximately £75/month — a significant step up from free. Klaviyo free is best used as a trial environment, not a long-term free tier.
Brevo Free: 300 emails/day, unlimited contacts
Brevo (formerly Sendinblue) has a genuinely useful free tier for businesses with large contact lists but low send frequency. The 300 emails per day limit (approximately 9,000 per month) with unlimited contacts makes it viable for a store with 5,000 contacts that sends infrequently. The catch is that 300 emails per day cannot support a real-time abandoned cart trigger without significant delay — if you have 50 cart abandonments in an evening, your trigger emails will queue and send the following morning. For transactional urgency, the daily limit is a real constraint.
MailerLite Free: 1,000 subscribers, 12,000 emails/month
MailerLite's free plan offers 1,000 subscribers and 12,000 sends per month with automation access. It is one of the more generous free tiers in 2026 for a store in early growth. The automation builder on the free plan supports multi-step sequences with time delays, making it possible to run a proper welcome sequence and a basic abandoned cart flow at zero cost. The main limitations are that the free plan includes MailerLite branding in emails and lacks the advanced segmentation features available on paid tiers.
Which free email marketing tool should you choose?
The right free tier depends on your priority. If you have a small list (under 500) and want the most powerful flow builder to learn on: Klaviyo free. If you have a larger list and low send frequency: Brevo free. If you want a genuinely generous free tier with automation access: MailerLite free. If you want free email marketing with free capture widgets bundled and no contact limit: Visisto free. The Visisto free plan is the only option that includes gamified capture widgets (spin wheel, scratch card) alongside the email tools, which matters because capture and email are both required for a complete marketing funnel.
When to upgrade from a free email marketing plan
The right time to upgrade is when your free plan is limiting revenue, not just when you hit a technical cap. Specific triggers that signal it is time to upgrade: you are hitting the monthly send limit before the end of the month, you need more than one automated sequence (welcome sequence alone is not enough for abandoned cart), you want to remove branding from emails to improve deliverability and professional appearance, or you need segmentation based on purchase history to personalise flows. Any of these conditions indicates that the cost of the upgrade is likely covered by the incremental revenue from the features you are unlocking.
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The hidden costs of free email marketing plans
Free plans come with costs that are not on the pricing page. First, branding: Mailchimp, MailerLite, and Brevo all add their own logo to emails sent on free tiers. This is a minor aesthetic issue but has a real deliverability implication — shared IP addresses used by free-tier senders carry the reputation of every other free-tier user. A store with clean list hygiene sharing an IP with a high-complaint sender sees higher spam rates through no fault of its own. Second, feature gates: the most conversion-relevant features (advanced segmentation, A/B testing, send time optimisation) are behind paid tiers on most platforms. You can send emails for free, but you cannot optimise them effectively.
Free plan feature comparison table
- Visisto Free: 15,000 emails/month, unlimited contacts, 1 automation, all 20 capture widgets, no branding
- Mailchimp Free: 1,000 emails/month, 500 contacts, 1 automation step only, Mailchimp branding
- Klaviyo Free: 500 emails/month, 500 contacts, full flow builder, Klaviyo branding
- Brevo Free: 9,000 emails/month, unlimited contacts, automations limited, Brevo branding
- MailerLite Free: 12,000 emails/month, 1,000 subscribers, multi-step automations, MailerLite branding
- ActiveCampaign: No free tier — 14-day trial only
How to get the most from a free email plan before upgrading
The highest-leverage use of a free email plan is building your automation foundation before your list grows large enough to require a paid plan. The two sequences that generate the most revenue — welcome sequence and abandoned cart — should be configured and tested while you are on the free tier. By the time your list grows to the free plan ceiling, you should have proven email ROI (revenue per subscriber per month) that justifies the upgrade cost. A store that upgrades with zero automations running is paying for potential. A store that upgrades with a working welcome sequence and abandoned cart flow generating £3–5 per subscriber per month is paying for proven returns. Visisto's free plan includes one sequence so you can run the higher-priority of these two flows at zero cost.
When free email marketing stops being free: the real upgrade triggers
The decision to upgrade from a free plan should be driven by revenue impact, not by hitting a technical ceiling. The email platform sends a notification when you are approaching a limit, but that limit is not the right signal. The right signal is one of three conditions: your free automation is generating measurable revenue and you need a second automation to capture more (post-purchase upsell, win-back), your list has grown to a size where the send limit prevents you from reaching the full list in one broadcast cycle, or you need features (segmentation, A/B testing, custom domain) that improve the ROI of the sends you are already running. At that point, the upgrade cost is almost always covered by the incremental revenue within the first month.
Written by Visisto Team
Content Team
