Email Marketing Platforms Compared for Small Businesses
Email remains one of the few marketing channels you fully own, but the platform you send from shapes what you can do with it. Some tools are built for creators, some for online stores and some for budget-conscious generalists. Here is how five popular platforms compare and how to choose.
Key takeaways
- Mailchimp is a broad, well-known all-rounder; Kit is built for creators; Brevo bundles email with SMS and other channels; MailerLite focuses on simplicity and value; Klaviyo is built for ecommerce data.
- Pricing models differ. Some charge mainly by contacts, others by emails sent, so the cheapest option depends on your list size and sending frequency.
- Automation, segmentation and integrations matter more than template galleries for long-term results.
- Plans and free tiers change often. Check current pricing and terms on each vendor's site before you migrate.
Choosing an email platform feels like a small decision until you have thousands of subscribers, a dozen automated sequences and data tied to your store or website. Switching then becomes a project. Picking well at the start saves real time and money.
This guide compares five widely used platforms. It focuses on choosing the tool, not on writing better campaigns; tips on subject lines, content and send timing are covered in a separate BizTips article on email marketing.
What to look for in an email platform
Most email platforms can send a nice newsletter. The differences show up in five areas:
- Pricing model: charged by number of contacts, by number of emails sent, or a mix. This decides how costs grow.
- Automation: welcome series, abandoned cart flows, re-engagement sequences and branching logic.
- Segmentation and data: how easily you can target people based on tags, behavior, purchases or custom fields.
- Integrations: connections with your website, online store, CRM, forms and landing pages.
- Deliverability support: help with domain authentication, list hygiene and staying out of spam folders.
Common mistake
Choosing a platform based only on the free plan. Free tiers are great for starting, but contact limits, sending limits and missing automation features can force an upgrade or a migration just as your list starts to grow. Model the cost at two or three times your current list size.
The five platforms compared
Mailchimp
Mailchimp, owned by Intuit, is one of the best-known names in email marketing. It offers a drag-and-drop editor, templates, automations, landing pages, audience segmentation and a wide range of integrations, plus reporting and AI-assisted content features on some plans.
It tends to suit businesses that want a familiar, broad tool with lots of integrations and learning resources. The trade-off many users mention is cost as lists grow and the way features are split across plans, so compare carefully at your expected list size.
Kit
Kit, previously known as ConvertKit, was built for creators such as writers, podcasters, course sellers and coaches. It emphasizes tags over separate lists, visual automations, landing pages and tools for selling digital products and paid newsletters.
It tends to suit solo creators and small media businesses whose main asset is an audience. Its email designs are intentionally simple and text-focused, which works well for newsletters but may feel limited for brands that want heavily designed promotional emails.
Brevo
Brevo, formerly Sendinblue, is a marketing platform that combines email with SMS, WhatsApp campaigns, transactional email, a basic CRM and live chat. It is headquartered in France, which some European businesses value for data protection reasons.
Its pricing has historically been based more on emails sent than on contacts stored, which can be attractive for businesses with large lists that send infrequently. It tends to suit businesses that want several channels in one place or need both marketing and transactional email.
MailerLite
MailerLite is known for a clean, easy editor and solid core features, including automations, landing pages, pop-ups, simple websites and selling digital products, typically at a competitive price point.
It tends to suit small businesses, nonprofits and creators who want strong fundamentals without complexity. Businesses with very advanced segmentation or ecommerce data needs may find specialized tools go further.
Klaviyo
Klaviyo is built around ecommerce data. It connects deeply with online store platforms and uses purchase history, browsing behavior and predicted customer value to power segments and automated flows, along with SMS marketing.
It tends to suit online stores that want revenue-driven automation such as abandoned cart, browse abandonment and post-purchase flows. For a service business without a store, much of its power goes unused, and costs can be higher than generalist tools as lists grow.
Side-by-side comparison
This table summarizes general strengths and typical fit. It avoids exact prices because plans, limits and free tiers change often. Always confirm current pricing and terms with each vendor.
| Platform | Known for | Typical fit | Watch out for |
|---|---|---|---|
| Mailchimp | Broad features, many integrations, brand recognition | Generalist small businesses | Costs at larger list sizes, plan feature splits |
| Kit | Creator tools, tagging, digital product sales | Writers, coaches, course and newsletter businesses | Simpler visual design options |
| Brevo | Email plus SMS, chat and transactional email | Multichannel needs, large lists sending less often | Branding and feature limits on lower plans |
| MailerLite | Ease of use, solid fundamentals, value | Small businesses and nonprofits | Less depth for complex data needs |
| Klaviyo | Ecommerce data, predictive segments, SMS | Online stores focused on revenue flows | Higher costs, less useful without a store |
Deliverability: the part nobody should skip
An email that lands in spam is an email that was never sent. Since 2024, Google and Yahoo have required bulk senders to authenticate their email with SPF, DKIM and DMARC, keep spam complaint rates low and offer easy one-click unsubscribe, according to their published sender guidelines. Every serious platform supports these steps, but you still have to set them up on your own domain.
Whichever platform you choose, send from your own domain rather than a free webmail address, remove addresses that bounce, and never upload purchased lists. Most platforms forbid purchased lists in their terms and may suspend accounts that use them.
A decision framework
- Define your business model. Store, service business, creator or nonprofit? This narrows the field quickly: stores lean toward ecommerce-focused tools, creators toward creator platforms.
- Estimate list size and sending frequency. Write down your contacts today and in 12 months, and how many emails you send per month. Price each platform on those numbers.
- List your must-have automations. For example, a welcome series, abandoned cart, post-purchase follow-up or a lead nurture sequence.
- Check integrations. Confirm native connections with your website builder, store, CRM, booking tool and forms.
- Trial two platforms. Rebuild your welcome email and one automation in each. Note how long it takes and how the emails look on mobile.
- Review compliance and data. Check data processing agreements, hosting regions, consent tracking and unsubscribe handling.
Hypothetical example
Suppose a candle shop with an online store and 8,000 subscribers wants abandoned cart and post-purchase emails tied to order data. An ecommerce-focused platform with a deep store integration is likely the strongest fit. Now imagine a freelance consultant with 1,500 subscribers who sends a monthly newsletter and a five-email welcome series: a simpler, lower-cost tool with good basics would probably serve her better than a data-heavy platform.
Contact-based pricing works well when
- You email a modest list frequently
- You keep your list clean and remove inactive contacts
- You want predictable monthly costs
Send-based pricing works well when
- You have a large list but send occasionally
- You store many contacts for other channels
- Your sending volume is seasonal
Questions to answer during your trial
A free trial is only useful if you test the things that will matter in six months. While you rebuild your welcome email and one automation, write down answers to these questions:
- How long did it take to build a branded template you would be happy to send?
- Can you segment by the data you actually have, such as purchase history, tags, location or signup source?
- Do signup forms embed cleanly on your website and look good on a phone?
- How clear are the reports on opens, clicks, unsubscribes and, if relevant, revenue?
- How good is support when you ask a real question, and in which hours and languages is it available?
- What happens to your data if you downgrade or cancel, and how easy is a full export?
Score each platform on the same questions. The winner is usually obvious once you compare notes side by side.
Privacy and consent
Email marketing is regulated in most markets. In the European Union and the United Kingdom, GDPR and ePrivacy rules generally require clear consent for marketing emails and records of how consent was given. In the United States, the CAN-SPAM Act sets requirements such as accurate sender information, a physical postal address and a working unsubscribe link, according to the Federal Trade Commission's guidance. Canada's anti-spam law (CASL) is stricter still on consent.
Check that your platform stores consent records, supports double opt-in where you need it, processes unsubscribes immediately and offers a data processing agreement. If data location matters to you, ask where subscriber data is hosted.
Pro tip
Before migrating, export your full list with tags, consent dates and unsubscribe status. Import unsubscribed and bounced contacts as suppressed in the new platform, so you never accidentally email someone who opted out.
Your email platform checklist
- Define your business model and main email goals
- Estimate list size and monthly sends for the next 12 months
- List must-have automations and integrations
- Price two or three platforms at your expected size
- Trial two platforms by rebuilding a welcome email and one flow
- Set up SPF, DKIM and DMARC on your sending domain
- Confirm consent records, DPA and data hosting region
Frequently asked questions
Is a free email marketing plan enough to start?
For a new list, often yes. Free plans usually cap contacts, monthly sends or features such as automation and removing the vendor's branding. Check those limits and the price of the next tier before you invest heavily in one platform.
How hard is it to switch email platforms?
Moving contacts is easy. Rebuilding templates, automations, forms and integrations takes longer. Plan a few weeks for a careful switch, and warm up sending gradually on the new platform.
Should I use my CRM's email tools instead?
If your CRM includes marketing email and your needs are simple, that can reduce tool sprawl. Dedicated platforms usually offer stronger templates, automations and deliverability tools, so compare both before deciding.
Does the platform affect deliverability?
Somewhat, but your own practices matter more: authentication, list quality, consent and relevant content. A good platform makes these easier, but it cannot fix a purchased or neglected list.
Related reading
The bottom line
Mailchimp, Kit, Brevo, MailerLite and Klaviyo are all capable platforms with different sweet spots: broad generalist, creator focus, multichannel, simplicity and value, and ecommerce data. Start from your business model, price each option at your expected list size, trial two platforms with a real automation and set up domain authentication properly. Then confirm current pricing and terms before you move your list.
