Best Email Marketing Tools for Different Business Needs
There is no single best email marketing tool for every business. Free plans, contact or subscriber limits and send limits vary widely. Providers also price on different units, such as contacts, subscribers, active profiles or monthly sends, so headline prices rarely compare like for like. Automation depth, ecommerce fit and CRM connections differ too.
This guide compares eight email marketing tools using official pricing, documented plan limits and product positioning. BestPickRadar did not independently test deliverability, inbox placement or campaign performance, so nothing here is a performance ranking. Use it to shortlist email marketing software that matches your list size, sending volume and workflow, then confirm current details with the provider.
QUICK MATCHES
These are editorial fits based on documented plans and features, not test rankings.
Eight email marketing tools compared by fit, free access, contact and send limits, pricing, and limitations.
Tool
Best suited for
Free access
Contact / subscriber allowance
Send allowance
Paid pricing context
Main limitation
Mailchimp
General-purpose email marketing
Yes
250 contacts
500/month; 250/day cap
Varies by plan and contact tier
Costs rise with contact count and plan needs
Brevo
Send-volume-focused email marketing
Yes
Free: up to 100,000 stored contacts; Starter lowest tier: up to 500 stored contacts
Free: 300/day
Starter from US$9/month; 5,000 monthly-send tier
Daily send cap on Free
MailerLite
Simple email marketing for smaller lists
Yes
250 active subscribers
2,500/month
Comfort from US$12/month; scales by subscriber tier
Much smaller Free allowance since the 2026 update
Kit
Creators and newsletters
Yes
Up to 10,000 subscribers
Unlimited broadcasts
Creator US$39/month on monthly billing; or US$390/year, approximately US$32.50/month equivalent, at up to 1,000 subscribers
Paid pricing scales with subscribers
ActiveCampaign
Deeper email automation
No permanent plan; 14-day trial
As many contacts as needed during trial, per ActiveCampaign documentation
Up to 100 sends during trial
From US$15/month for under 1,000 contacts
No permanent free plan
Klaviyo
Ecommerce email marketing
Yes
250 active profiles
500/month
Scales with profiles and sends; selected-tier example: US$45/month, 15,000 sends
Price grows with active profiles and usage
HubSpot Marketing Hub
CRM-connected email marketing
Free tools, US$0
Up to 2 users; up to 1,000 contacts
2,000 email sends per calendar month
Marketing Hub Starter regular US$20/month per seat; 1,000 marketing contacts; 5× tier = 5,000 sends per calendar month
Broader suite, not a simple standalone email tool
Constant Contact
Straightforward small-business email
No permanent free plan; trial available
Priced by contact tier
Lite up to 10× selected contact tier monthly
Lite US$12/month on monthly billing, lowest contact tier; annual prepay approximately US$10.20/month equivalent
Price and sends scale with contact tier
HOW THIS GUIDE WAS BUILT
How We Evaluated
BestPickRadar compared these eight tools using official pricing pages, plan documentation and help resources, with research updated on October 12, 2026. We looked at:
Free-plan or trial availability
Contact, subscriber or profile allowances
Monthly and daily email limits
Paid pricing structure and pricing units
Automation, ecommerce and CRM fit
Newsletter and creator fit
Major plan limitations
We did not perform deliverability, inbox-placement, spam-folder, open-rate, click-rate or campaign-conversion testing. We also did not run automation, support or hands-on usability tests. Where a provider's figure was tied to a selected tier, we say so rather than simplify it. This guide uses no scores, ratings or performance winners, and “fit” labels are editorial interpretations of documented plans and features.
The 8 Email Marketing Tools
Mailchimp
General-purpose email marketing
Mailchimp is a general-purpose email marketing platform with broader marketing features. Editorial fit: businesses wanting one tool for everyday campaigns and wider marketing. The Free plan covers up to 250 contacts and 500 email sends per month, with a 250-email daily send cap. Paid Essentials and Standard pricing depends on the contact tier you select, so this guide states no universal starting price. Main limitation: costs rise as contact counts and plan needs grow.
Free contacts
250
Free sends
500/month
Daily cap
250
Paid price
Varies by contact tier
Read full profile: Mailchimp+
Mailchimp's official pricing page presents Essentials and Standard prices based on the selected contact tier, and the figure changes as that tier rises. An isolated headline price can therefore mislead. Compare the plan you need at the contact count you actually have, plus the count you expect to reach. Also check whether a displayed price reflects a current offer before using it in a budget.
Brevo is an email marketing platform with broader multi-channel marketing features and pricing built around send volume. Editorial fit: businesses where sending volume matters more than list size. The Free plan stores up to 100,000 contacts but caps sending at 300 emails per day. Starter begins at US$9/month for 5,000 monthly emails and up to 500 stored contacts at that lowest tier. Main limitation: the daily cap on Free restricts campaigns to larger lists.
Free contacts
Up to 100,000
Free sends
300/day
Starter
US$9/month
Lowest Starter
5,000 sends up to 500 contacts
Read full profile: Brevo+
A large contact database does not mean unlimited sending. On Free, a list larger than 300 contacts cannot receive a single campaign in one day. Starter pricing scales with monthly email volume and selected features, so US$9/month applies only to the lowest tier (5,000 emails, up to 500 stored contacts); higher Starter tiers raise those limits. Brevo is worth comparing when send volume, rather than a low contact-storage ceiling, is your main constraint.
MailerLite offers a simpler email marketing workflow for smaller lists. Editorial fit: buyers who want straightforward campaigns and pricing. After its June 2026 Free-plan update, Free covers 250 active subscribers and 2,500 monthly emails. Paid Comfort starts at US$12/month, with pricing that scales by subscriber tier. Main limitation: the current Free allowance is much smaller than MailerLite's older free limits, so growing lists reach paid plans sooner.
Free
250 active subscribers
Free sends
2,500/month
Comfort
From US$12/month
Pricing basis
Subscriber tier
Read full profile: MailerLite+
Older comparisons may still quote MailerLite's larger historical Free limits. This guide uses only the current allowance of 250 active subscribers and 2,500 monthly emails. On paid plans, price rises with subscriber tier. Power includes unlimited monthly emails, subject to MailerLite's fair-use policy; that does not apply to every paid plan. Check which tier matches your list before comparing it with send-based pricing.
Kit is an email platform built for creators, newsletters and audience-based businesses. Editorial fit: writers, publishers and creators growing a subscriber list. The Free plan supports up to 10,000 subscribers with unlimited broadcasts. The paid Creator plan costs US$39/month on monthly billing for up to 1,000 subscribers, and pricing changes as your subscriber count grows. Main limitation: paid costs scale with audience size.
Free subscribers
Up to 10,000
Free broadcasts
Unlimited
Creator monthly
US$39/month
Creator annual
US$390/year
Read full profile: Kit+
Free also includes unlimited forms and unlimited landing pages. That does not make every Kit feature free; broadcasts, forms and landing pages are the documented unlimited items. At up to 1,000 subscribers, annual billing costs US$390/year, about US$32.50/month equivalent, versus US$39 on monthly billing. Because price follows subscriber count, estimate list growth before choosing between monthly and annual billing.
ActiveCampaign is an email marketing platform positioned around deeper email automation. Editorial fit: businesses that need more advanced automated email workflows. There is no permanent free plan. ActiveCampaign states that its 14-day trial can be tested with as many contacts as needed, with up to 100 email sends. Paid plans start at US$15/month for accounts with under 1,000 contacts. Main limitation: continued use after the trial requires a paid plan.
Trial
14 days
Trial contacts
As many as needed
Trial sends
Up to 100
Paid
From US$15/month under 1,000 contacts
Read full profile: ActiveCampaign+
That trial contact allowance applies to the trial only, not to paid accounts. Paid pricing is tied to contact count, so US$15/month applies only below 1,000 contacts. ActiveCampaign is included because automation depth is an important email-marketing selection factor. Confirm which automation features your chosen plan includes before committing.
Klaviyo is an email marketing platform oriented toward ecommerce and customer-data-driven workflows. Editorial fit: online stores that want email shaped by customer data. The Free plan covers up to 250 active profiles and 500 emails per month. Paid pricing scales with active profiles and sending volume. Its official pricing page currently shows an email-plan example at US$45/month with 15,000 sends for the selected profile tier; this is not a universal starting price. Main limitation: costs grow with profiles and usage.
Free profiles
250
Free sends
500/month
Pricing basis
Profiles + sends
Example
US$45/month 15,000 sends selected tier
Read full profile: Klaviyo+
Klaviyo's price depends on active profiles, send volume and the products or features you select. Estimate both your active-profile count and expected monthly sends before comparing it with contact- or subscriber-based tools. A store with a modest list but frequent campaigns may need a different tier than list size alone suggests. Confirm how Klaviyo defines active profiles on its pricing page.
HubSpot Marketing Hub connects email marketing to HubSpot's CRM and broader inbound-marketing tools. Editorial fit: businesses that want campaigns tied closely to CRM records. HubSpot's free tools cost US$0 for up to 2 users and 1,000 contacts, with 2,000 email sends per calendar month, though not all Marketing Hub functionality is free. Marketing Hub Starter is regularly US$20/month per seat with 1,000 marketing contacts. Main limitation: it is a broader suite purchase rather than a simple standalone email tool.
Free users
Up to 2
Free contacts
Up to 1,000
Free sends
2,000/month
Starter
US$20/month per seat
Read full profile: HubSpot Marketing Hub+
HubSpot sometimes displays temporary new-customer promotional pricing. This guide uses the regular US$20/month per-seat Starter price as the evergreen reference. Starter sends are capped at 5× the marketing-contact tier per calendar month, or 5,000 at the included 1,000 contacts. Free marketing emails carry HubSpot branding. HubSpot is most relevant when you already want a CRM-centered setup; buyers who only need email may find a standalone tool simpler.
Constant Contact offers straightforward email marketing with support-oriented positioning for small businesses. Editorial fit: small businesses wanting simple, regular campaigns. There is no permanent free plan, but a free trial is available. Lite costs US$12/month for the lowest contact tier on monthly billing, and includes monthly sends of up to 10 times your selected contact tier. Main limitation: both price and send allowance scale with contact tier.
Free plan
No
Trial
Available
Lite
US$12/month
Send limit
Up to 10× contact tier
Read full profile: Constant Contact+
With annual prepayment, Lite starts at about US$10.20/month equivalent for the lowest contact tier. That lower figure reflects paying for a year upfront, not a separate monthly price. Monthly sends are capped at 10× the contact tier, so sending is not unlimited; moving to a higher tier raises both price and send allowance. Compare monthly and annual totals at the contact tier you actually need.
Mailchimp is a starting point if you want everyday campaigns plus broader marketing features in one place. Price it at the contact tier you actually need, not a headline figure.
High contact storage with send-volume limits
Consider Brevo if you store a large contact list but send relatively few emails. Its Free plan holds many contacts, while sending is limited by a daily cap.
Smaller lists and simpler campaigns
MailerLite may fit small lists that need a straightforward workflow. Check the current Free allowance, since it is smaller than older comparisons suggest.
Creators and newsletters
Kit is relevant for writers, publishers and creators who send regular broadcasts. Its Free plan supports a sizeable subscriber list, and paid costs follow audience size.
Deeper email automation
Consider ActiveCampaign if automated email sequences are central to your marketing. There is no permanent free plan, so use the 14-day trial to evaluate it.
Ecommerce email
Klaviyo may fit online stores that want email shaped by customer data. Estimate active profiles and monthly sends together before comparing costs.
CRM-connected marketing
HubSpot Marketing Hub is a starting point if email should sit inside a CRM and broader inbound-marketing setup, rather than in a standalone tool.
Straightforward small-business email
Constant Contact may fit small businesses wanting simple campaigns and support-oriented positioning. A free trial is available, and sends scale with your contact tier. DESIGN: 1–2 short sentences per card. Do not repeat full pricing details. Do not use equal fixed heights if that produces empty whitespace. ==================================================
Free vs. Paid + Contact & Send Limits
Free access, contacts, sends, and paid context for eight email marketing tools.
Tool
Free / trial
Contact / subscriber limit
Send limit
Entry paid context
Main thing that changes when paying
Mailchimp
Free plan
250 contacts
500/month; 250/day
Varies by plan and contact tier
Higher contact tiers and plan features
Brevo
Free plan
Up to 100,000 stored contacts
300/day
Starter from US$9/month; 5,000 monthly emails; up to 500 stored contacts
Monthly send volume replaces daily cap; contact storage set by tier
MailerLite
Free plan
250 active subscribers
2,500/month
Comfort from US$12/month by subscriber tier
Larger subscriber tiers; Power includes unlimited monthly emails subject to fair use
Kit
Free plan
Up to 10,000 subscribers
Unlimited broadcasts
Creator US$39/month, monthly billing, up to 1,000 subscribers
Lite US$12/month, monthly billing, lowest contact tier
Ongoing access; tier determines price and sends
What to check before paying
Whether pricing is based on contacts, subscribers, profiles or sends
Monthly and daily send limits
Whether inactive contacts still count toward billing
Monthly vs. annual billing
Whether a displayed price is promotional
Automation availability on your plan
Ecommerce or CRM integrations you actually need
Automation, Ecommerce & CRM Differences
Beyond limits and price, three factors separate these tools most clearly. Here they are treated only as email-marketing selection factors.
Email automation depth differs
ActiveCampaign is included because automated email workflows are an important selection factor for many buyers. Other tools here also offer automation, but what is available can depend on the plan, so check plan details rather than assuming parity.
Ecommerce fit differs
Klaviyo is strongly ecommerce-oriented, with pricing tied to active profiles and sends. Mailchimp, Brevo and other platforms on this list can also support ecommerce use. BestPickRadar has not compared ecommerce performance.
CRM-connected email differs
HubSpot Marketing Hub ties email closely to its broader CRM and inbound-marketing environment. Brevo and others also include broader customer-management features. If you only need email, a CRM-centered suite may be more than you need.
Check whether automation is included on your plan.
Check whether ecommerce integrations match your store.
Decide whether you want email-only software or a broader suite.
Compare contact and profile definitions carefully.
Confirm current plan limits before migrating.
Frequently Asked Questions
What are the best email marketing tools for different businesses?+
There is no single best email marketing tool, and BestPickRadar did not run performance tests to pick a winner. Fit depends on your business. Mailchimp suits general-purpose marketing and Brevo suits send-volume-focused pricing. MailerLite fits smaller lists and Kit fits creators. ActiveCampaign is a starting point for deeper automation, Klaviyo for ecommerce, HubSpot for CRM-connected marketing and Constant Contact for straightforward small-business email.
Which email marketing tools have free plans?+
Six of the eight offer free access. Mailchimp (250 contacts, 500 sends/month), Brevo (300 emails/day), MailerLite (250 active subscribers, 2,500 emails/month), Kit (up to 10,000 subscribers) and Klaviyo (250 active profiles, 500 emails/month) have Free plans. HubSpot's free tools cover up to 2 users, 1,000 contacts and 2,000 email sends per month. ActiveCampaign and Constant Contact have no permanent free plan but offer free trials.
Which email marketing tool has the largest free contact or subscriber allowance?+
The free plans aren't directly comparable. Brevo stores up to 100,000 contacts but limits sending to 300 emails per day. Kit allows up to 10,000 subscribers with unlimited broadcasts. Mailchimp, MailerLite and Klaviyo combine a 250-person audience limit with a monthly send cap. HubSpot's free tools allow up to 1,000 contacts and 2,000 sends per calendar month. Compare audience and send limits together against how often you email.
What is the difference between contact-based and send-based pricing?+
Contact-based pricing charges by audience size, such as contacts, subscribers or active profiles, regardless of how often you send. Send-based pricing charges mainly by how many emails you send. Brevo leans toward send volume, while Kit, MailerLite and Constant Contact scale by audience. Klaviyo combines profiles and sends. A large list emailed rarely and a small list emailed often can favor different models.
Which email marketing tools are useful for small businesses?+
Constant Contact is positioned for straightforward small-business email, with a free trial and pricing by contact tier. MailerLite may fit smaller lists wanting a simple workflow, and Mailchimp offers a general-purpose option with broader marketing features. If you need CRM-connected marketing as you grow, HubSpot's free tools are a starting point. Compare each at your actual contact count.
Which email marketing platform fits ecommerce businesses?+
Klaviyo is strongly ecommerce-oriented, with pricing tied to active profiles and send volume. Its Free plan covers 250 active profiles and 500 emails per month. Mailchimp, Brevo and other tools here can also support ecommerce use. BestPickRadar did not compare ecommerce results, so check which integrations match your store and estimate profiles and sends before comparing costs.
Which email marketing tool is useful for automation?+
ActiveCampaign is included in this guide because of its positioning around deeper email automation. It has no permanent free plan, but a 14-day trial with up to 100 email sends lets you evaluate it. Other tools here also offer automation, though availability can depend on plan. Confirm which automation features your chosen plan includes before paying.
What should I check before paying for email marketing software?+
Confirm whether pricing is based on contacts, subscribers, profiles or sends, and check monthly and daily send limits. Ask whether inactive contacts still count toward billing. Compare monthly and annual billing, and check whether a displayed price is promotional. Finally, confirm that automation and the ecommerce or CRM integrations you need are included on the plan you're buying.
SOURCE NOTES
Sources, Research Date & Disclosure
Prices, contact limits and send limits change, promotions can expire, and providers can restructure their plans. Verify current pricing immediately before subscribing.
RESEARCH UPDATEDOctober 12, 2026
BestPickRadar did not independently test deliverability or campaign performance. Editorial-fit statements come from documented plans and features, and the guide uses no ratings or scores. No affiliate relationships have been supplied for this guide.