SendFox vs Substack

SendFox is a web-based email marketing tool with email automation, audience segmentation, landing pages, and A/B testing. Its free plan is billed forever without a card and allows 1,000 contacts and 3,000 sends per month, plus one Smart Page, one form, and one automation. The Pro 1 plan costs $19 a month and includes 5,000 contacts and 100,000 emails per month. Higher monthly plans raise those allowances: Pro 2 costs $39 a month for 15,000 contacts and 200,000 emails; Pro 3 costs $79 a month for 50,000 contacts and 400,000 emails; Pro 4 costs $149 a month for 100,000 contacts and 800,000 emails; and Pro 5 costs $399 a month for 250,000 contacts and 2,000,000 emails. A Lifetime option is listed at $29 a month, billed one time, with 5,000 contacts and 300,000 lifetime sends. SendFox runs on the web.

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.