For a U.S. small business with about 500 marketable contacts, MailerLite Comfort is the strongest all-around starting point at $12 a month . Brevo Starter costs less if footer branding is acceptable, while Mailchimp and Constant Contact make more sense for specific integration, support, or event needs. The four entry plans sit within a few dollars of one another, but the subscription price is only the first filter. Sending allowances, automation limits, user seats, branding, and the work required to change platforms can produce a very different real cost. Prices and plan details were checked against official U.S. vendor pages on September 7, 2026. Figures below use month-to-month starting prices for up to 500 contacts and exclude taxes, temporary promotions, annual-prepayment discounts, optional add-ons, and account-specific offers. Vendors can change pricing or features, so confirm the checkout total before purchasing. The criteria that change the choice This comparison a...