Email Marketing Platforms 2026 Comparison

How email pricing works in 2026

There are two pricing models among the six platforms in this comparison: per active contact (Mailchimp, Klaviyo, ActiveCampaign, Constant Contact, Kit) and per send (Brevo). The per-contact model gets expensive fast on large lists with low engagement; the per-send model rewards list hygiene and discourages spray-and-pray. Knowing which model your list shape favors saves real money — Brevo can be 50–70% cheaper than Mailchimp for the same program if you have a big list and modest send frequency.

Two structural changes from 2023 affect every platform on this list. First, in February 2024 Google and Yahoo started enforcing strict sender requirements (SPF, DKIM, DMARC, easy unsubscribe headers, complaint rate caps) for any sender emailing more than 5,000 messages per day to their users. Every platform here helps you set the records but the responsibility is on the sender. Second, Apple Mail Privacy Protection (introduced in iOS 15) prefetches images and breaks open-rate tracking for Apple Mail recipients, which is roughly half of all opens for B2C lists. Open-rate-only optimization is now misleading; click-through and conversion are the only safe primary metrics.

Mailchimp: deep dive

Mailchimp's pricing at mailchimp.com/pricing/marketing runs Free ($0, 500 contacts, 1,000 sends/mo), Essentials ($13/mo, 500 contacts), Standard ($20/mo, 500 contacts) and Premium (from $350/mo, 10,000 contacts). Per-contact pricing scales steeply: 100,000 contacts on Standard runs roughly $385/mo and 200,000 runs roughly $720/mo at time of writing.

What it does well. The drag-and-drop editor remains best-in-class for general-purpose newsletters and the brand-templates gallery is the largest in the comparison. Generative AI Subject Line Helper and Content Optimizer are bundled into Standard and above. Native integrations with Shopify, Squarespace, WooCommerce and over 300 SaaS tools.

Where it falls short. Pricing scaling. Mailchimp's contact-tier ladder is one of the steepest in the industry above 25,000 contacts, and the platform is not the obvious pick for e-commerce (Klaviyo is). Automation features rolled out in 2023–2024 have closed some of the gap with ActiveCampaign but still feel less flexible.

Best fit. SMBs (under 25,000 contacts), nonprofits, and brand-led newsletters that want a polished design experience. Above 50,000 contacts, model the per-list price against Brevo and Klaviyo before renewing.

Klaviyo: deep dive

Klaviyo's pricing at klaviyo.com/pricing is contact-based for email and message-based for SMS. Email runs $0 free (250 contacts, 500 sends), $45/mo at 1,001–1,500 contacts, and scales smoothly upward. The pricing calculator on the page is accurate and worth modeling against your actual list size.

What it does well. E-commerce data. Klaviyo's native Shopify, BigCommerce, Magento and WooCommerce integrations import every product, order, line item, abandoned cart and customer event in real time. Flows trigger off these events with no webhook plumbing required. Predictive Analytics forecasts churn risk and lifetime value per profile. Klaviyo Reviews (paid add-on) is a credible Yotpo replacement for Shopify stores.

Where it falls short. Pricing at scale (a 100,000-contact e-commerce store on email-only Klaviyo runs ~$720/mo at time of writing). The automation builder is purpose-built for e-commerce and feels heavier than ActiveCampaign for B2B use cases. SMS billing is separate and can balloon if you do not gate sign-ups.

Best fit. E-commerce stores doing more than $25,000/mo in revenue. Below that revenue threshold, Mailchimp + a Shopify app is usually cheaper. Above ~$1M/mo revenue, Klaviyo is the default.

Kit (formerly ConvertKit): deep dive

ConvertKit rebranded to Kit in 2024. Pricing at kit.com/pricing is Newsletter (Free, up to 10,000 subscribers, no automations), Creator (paid, automation included, $25/mo at 1,000 subscribers) and Creator Pro ($50/mo at 1,000 subscribers, includes deliverability reporting and Facebook Custom Audiences). Pricing scales with subscriber count.

What it does well. Creator workflow. Visual automation builder, sequences, tag-based segmentation, paid newsletter support (Kit Tip Jar / commerce), and the simplest landing-page + form builder in the comparison. The free tier is genuinely usable up to 10,000 subscribers, which is unique.

Where it falls short. E-commerce data flows are weaker than Klaviyo. The HTML-template gallery is small (Kit is opinionated about plain-text-style emails performing better; this is true for creators but limits brand teams).

Best fit. Solo newsletter publishers, course authors, podcasters and creator brands. The free tier alone makes Kit a no-brainer to consider before paying for Mailchimp.

ActiveCampaign: deep dive

ActiveCampaign pricing at activecampaign.com/pricing is Starter ($15/mo, 1,000 contacts), Plus ($49/mo), Pro ($79/mo) and Enterprise (quote-based). All tiers bill annually for the published price; monthly billing is more expensive.

What it does well. Automation depth. ActiveCampaign's automation canvas is the most flexible in the comparison — nested branching, wait-for-event, send-at-best-time, and a CRM with deal pipelines. Predictive Sending and Predictive Content (paid tiers) optimize delivery timing and content selection per recipient.

Where it falls short. The UX has more depth than most teams need; new admins typically take a week to feel comfortable. E-commerce data is good but not Klaviyo-good. Native template gallery is smaller than Mailchimp's.

Best fit. B2B service businesses, agencies, and SaaS companies. ActiveCampaign Plus + a CRM-style sales pipeline replaces a lightweight HubSpot Sales Hub for many small companies.

Constant Contact: deep dive

Constant Contact pricing at constantcontact.com/pricing is Lite ($12/mo, 500 contacts), Standard ($35/mo) and Premium ($80/mo). Pricing scales with contact count. The 60-day free trial in the US is one of the longest in the industry.

What it does well. Simplicity. Constant Contact is the easiest tool in the comparison to onboard non-technical users. Native event marketing (RSVPs, ticketing) on Premium is a real differentiator for nonprofits and small associations. Local business templates are extensive.

Where it falls short. Automation is shallower than every other platform on this list. Pricing per contact is mid-pack, not cheap. AI features rolled out late compared to competitors. Mobile app for senders is functional but dated.

Best fit. Local SMBs, nonprofits, and event-driven small businesses. If you need automation depth, look elsewhere.

Brevo: deep dive

Brevo (formerly Sendinblue) pricing at brevo.com/pricing is Free ($0, 300 sends/day, unlimited contacts), Starter ($9/mo, 5,000 sends/mo), Business ($18/mo, 20,000 sends/mo) and BrevoPlus (quote-based). Brevo prices on sends, not on contacts — a structural advantage if you have a large list and modest cadence.

What it does well. Cost. Transactional email and marketing email in one bill. Native SMS, WhatsApp campaigns, and a Sales CRM that integrates with the email engine. Marketing automation is competent at the Business tier.

Where it falls short. The editor and template gallery are not as polished as Mailchimp's. Customer support response times skew slower than Klaviyo or ActiveCampaign. Some integrations are thinner (e.g., Shopify integration trails Klaviyo by a clear margin).

Best fit. Cost-sensitive teams with very large contact lists. SaaS companies that want to consolidate transactional + marketing email under one vendor. Multi-channel teams that also want SMS or WhatsApp without paying Twilio prices directly.

Deliverability: shared concerns and how each vendor handles them

Email deliverability in 2026 is no longer about choosing a “more deliverable” vendor — every platform on this list passes at major mailbox providers. The actual differentiator is sender behavior. Set up SPF, DKIM and DMARC before your first send. Maintain a complaint rate under 0.3 percent (the Google/Yahoo February 2024 threshold). Suppress unengaged recipients aggressively (six months no opens or clicks is a common pruning rule). Warm up new IPs and new domains gradually if you are migrating.

Specific platform notes. Klaviyo and ActiveCampaign offer dedicated IPs on higher tiers and publish detailed sender guides. Mailchimp Premium ships dedicated IPs and a deliverability consultant. Constant Contact runs strict shared-IP Acceptable Use enforcement which historically helps senders but hurts marginal lists. Kit ships strong shared-IP deliverability for creator newsletters. Brevo offers dedicated IPs from the BrevoPlus tier and is reliable on shared IPs for most sender profiles.

Pricing at three list sizes

Approximate published pricing at three reference list sizes (always re-check on the vendor pricing pages linked above):

1,000 contacts: Brevo Starter $9/mo, Constant Contact Lite $12/mo, Mailchimp Essentials $13/mo, ActiveCampaign Starter $15/mo, Kit Creator $25/mo, Klaviyo $30–$45/mo.

10,000 contacts: Brevo Business $18–$45/mo (depends on send volume), Mailchimp Standard ~$110/mo, ActiveCampaign Plus ~$135/mo, Constant Contact Standard ~$135/mo, Kit Creator ~$100/mo, Klaviyo email-only ~$130/mo.

100,000 contacts: Brevo Business + sends ~$60–$200/mo (depends on cadence), Kit Creator Pro ~$379/mo, Mailchimp Standard ~$385/mo, ActiveCampaign Plus ~$499/mo, Klaviyo email-only ~$720/mo, Constant Contact ~$435/mo.

Which platform should you pick?

You run a Shopify or BigCommerce store at $25k+/mo: Klaviyo. Nothing else captures e-commerce data this cleanly.

You publish a creator newsletter: Kit. Free up to 10,000 subscribers, simple paid newsletters, the cleanest writer-first UX in the comparison.

You run a B2B SaaS or service business with deep automation needs: ActiveCampaign Plus. CRM + email in one tool removes a vendor.

You are a small team or local business: Mailchimp Essentials or Constant Contact Lite. Brand templates, approachable UX, decent integrations.

You have a very large list (200k+) but modest send cadence: Brevo Business. The per-send model is meaningfully cheaper than per-contact at this scale.

Whichever you pick, set up SPF, DKIM and DMARC immediately, prune unengaged subscribers monthly, and re-evaluate at every doubling of list size — what wins at 1,000 contacts rarely wins at 100,000.