MailerLite vs Substack

MailerLite is an email marketing service for creating campaigns and managing audiences. Its tools include email automation, audience segmentation, landing pages, A/B testing, signup forms and digital products or bookings. The Free plan costs nothing and supports up to 250 subscribers and 2,500 monthly emails, with three automations, one website, one landing page and two user seats. Comfort costs $12 a month at the lowest listed tier, with 500 subscribers, three user seats and 50 automations. Power costs $25 a month and includes unlimited monthly emails, user seats, automations and landing pages.

Premium features are available in a free 14-day trial without a credit card. MailerLite lists more than 100 integrations, including Claude, WordPress, Canva, Zapier, Shopify and WooCommerce, and offers an iPad subscribe app. AI features include writing assistance, landing-page building, A/B testing and smart sending; its MCP Server lets Claude and ChatGPT manage email marketing. The company says it is ISO 27001 certified and GDPR compliant. Support includes a knowledge base, webinars, email, live chat and priority support.

Substack is a publishing platform for writers, creators, and subscribers, bringing posts, newsletters, podcasts, video, live streams, and pages into one publishing flow. Its editor supports scheduling, autosaved drafts, version history, templates, SEO metadata, and headline A/B testing. Creators can offer free or paid posts, subscriptions, trials, gifts, and group plans. Discovery tools include recommendations, Notes, leaderboards, referrals, and search; audience segmentation and email automation are also available. Podcast episodes can be distributed automatically to Apple Podcasts and Spotify, while video can go automatically to YouTube and LinkedIn. Publishing is free. When creators enable paid subscriptions, Substack keeps 10% of subscription revenue, and Stripe charges payment processing fees. Creators own their intellectual property and mailing list and can export their data. Substack serves writers, journalists, podcasters, video creators, experts, educators, and media companies. It is available on the web, Android, and iOS. Substack directs users to its Help Center and handles subscriber support questions on behalf of writers.