Substack

Substack is a publishing and newsletter platform where writers and authors build paid subscriber communities — with no monthly software fee. The platform earns money only when you do: it takes 10% of paid subscription revenue, plus Stripe's processing fees (~2.9% + $0.30 per transaction + 0.7% recurring billing fee). For free newsletters, Substack costs nothing.

What You Get#

• Built-in discovery: Substack's recommendation engine surfaces your newsletter to readers of similar publications. Writers can recommend each other, creating cross-promotion that drives organic subscriber growth without ad spend.
• Notes: A short-form content feed (like X/Twitter) integrated into the Substack network. Notes reach followers and subscribers-of-subscribers, giving mid-post visibility without a full newsletter send.
• Paid subscriptions: Readers pay monthly or annually for access to paywalled posts. You set the price; Substack takes 10%.
• Multimedia support: Audio episodes, video embeds, podcast hosting, and live streaming (opened to all publishers Jan 2025, 10-free-subscriber minimum) are included with no extra setup. Recording Studio (March 2026) adds in-platform video recording with up to 2 guests, auto-clips, and auto-thumbnails. A Substack TV app for Apple TV and Google TV launched in beta January 2026.
• Subscriber portability: You own your list and can export it at any time, making migration to another platform possible.

Who It's For#

• Nonfiction authors: Writers publishing essays, research, and commentary do well on Substack. The recommendation network favors opinion, culture, politics, and wellness niches.
• Serialized fiction authors: Writers publishing chapters or episodes serially can build a dedicated paid readership, though fiction has less organic discovery momentum than nonfiction.
• Authors testing paid content: Substack's zero upfront cost makes it a low-risk way to gauge whether readers will pay for your writing before investing in a full Kit or Ghost setup.
• Not for authors needing marketing sequences: Substack began rolling out Drip Campaigns (email automation sequences) in October 2025 to select Bestsellers, with general availability expanding through 2026. The current beta covers free-to-paid conversion, paid onboarding, upgrade onboarding, founding-member onboarding, and winback flows — but most authors still cannot access these. For now, if you need welcome automations, BookFunnel delivery sequences, segmentation, or A/B testing today, Substack is still the wrong tool.

Pricing: Free newsletters cost nothing. Paid subscriptions: Substack takes 10% + Stripe fees (2.9% + $0.30 per transaction + 0.7% recurring billing fee — the 0.5% grandfathered rate ended June 30, 2025). Total take-rate is roughly 13–14% of subscriber revenue. iOS in-app subscriptions (added August 18, 2025) route through Apple, which takes 30% in year one and 15% thereafter; Substack auto-raises iOS prices ~30% above web prices to preserve creator payout, and Apple holds payouts up to 45 days before disbursement.

Strengths#

• Zero upfront cost: No monthly fee until you're earning — the model suits early-stage or experimental newsletters.
• Network effects: The Substack recommendation engine is a genuine discovery channel; authors report meaningful subscriber growth from cross-recommendations with peers.
• Subscriber ownership: Unlike social media, you can export your list at any time and take it to another platform.
• Notes reach: Short-form posts on Notes can reach the broader Substack audience beyond your own subscriber list.

Limitations#

• Email automation still gated: Drip Campaigns (free-to-paid, paid onboarding, upgrade, founding, winback flows) are in beta to Bestsellers since October 2025 and rolling out to all creators through 2026. Until you have access, the only "automation" is a single welcome email. There is still no general-purpose visual automation builder, segmentation, or A/B testing — authors running reader magnets or launch sequences should plan on a separate ESP.
• No BookFunnel integration: Substack has no native BookFunnel connection. Authors use manual CSV exports as a workaround, or maintain a parallel Kit/MailerLite account for automated reader magnet delivery.
• Cannot sell books directly: Only recurring subscriptions are supported. You cannot sell ebooks, audiobooks, or one-time products through Substack.
• Affiliate links restricted: Substack's terms prohibit publications "whose primary purpose is to advertise external products or services." Standard affiliate links in editorial content appear to be tolerated, but the platform is not suited for affiliate-heavy promotion strategies.
• Revenue cut is steep at scale: At $1,000/month in subscription revenue, Substack takes $130–$140. At $5,000/month, that's $650–$700 — compared to $15–$47/month for a Ghost or beehiiv plan.
• Platform dependency: Your audience lives on Substack's domain, not your own. Policy changes or platform shutdown risk is real.

Alternatives#

beehiiv offers more robust analytics, referral programs, and ad network monetization at comparable or lower cost — better for growth-focused newsletters. Ghost gives full ownership of your site, 0% transaction fees, and email control — better for authors who hit $500+/month in subscriber revenue. Kit is the standard recommendation for authors needing email automations, BookFunnel integration, and proper list segmentation alongside newsletter publishing.