Is Kit or Substack cheaper?

Kit starts at $33/mo (Creator, 1,000 subscribers, billed annually) (free plan available). Substack starts at $0 to publish and send; 10 percent of paid subscription revenue if you monetize (free plan available).

Kit vs Substack

An independent, review-free comparison compiled by the SaaSTracker editorial team. Both products are profiled in full, and neither can pay for placement here.

The short answer

Editorial assessment

Substack compared with Kit

Kit is built for creators whose newsletter feeds a wider business of courses, products, and launches, with real visual automations, tag-based segmentation, and native commerce. Substack has almost no automation or segmentation but has a genuine consumer network Kit cannot match. If you sell things to your list, Kit. If your writing is the product and you need readers to find it, Substack.

Choose Kit if

Full-time creators (writers, podcasters, coaches, course sellers) who monetize an owned audience by email and want automations, cross-promotion, and payments in one subscription rather than a stack of separate tools.

Choose Substack if

Independent writers, journalists, and commentators who intend to monetize through paid subscriptions, value distribution and discovery over design control, and would rather pay a revenue share than a monthly fee while their audience is small.

Side by side

13 attributes

Attribute	Kit	Substack
Category	ESPs	ESPs
Starting price	$33/mo (Creator, 1,000 subscribers, billed annually) (free plan available)	$0 to publish and send; 10 percent of paid subscription revenue if you monetize (free plan available)
Pricing model	Subscriber-count tiers across three plans (Newsletter free, Creator, Pro), with prices set by a list-size slider; unlimited email sends on every plan and commerce metered by a per-transaction fee instead of a subscription.	No subscription fee and no sending charges. Substack takes 10 percent of gross paid subscription revenue, with Stripe processing fees on top, making the realistic all-in cost roughly 13.6 percent plus 30 cents per transaction. Free publishing is unlimited in both subscriber count and send volume.
Free plan	Newsletter plan: up to 10,000 subscribers, unlimited broadcasts, landing pages, and forms, digital product sales, but only 1 basic Visual Automation.	Unlimited free publishing with no subscriber cap and no sending volume cap. Full access to the editor, web archive, podcast and video hosting, Notes, apps, and the recommendations network.
Free trial	14 days on paid plans, no credit card required	Not applicable; the platform is free to use until you charge readers
Best for	Full-time creators (writers, podcasters, coaches, course sellers) who monetize an owned audience by email and want automations, cross-promotion, and payments in one subscription rather than a stack of separate tools.	Independent writers, journalists, and commentators who intend to monetize through paid subscriptions, value distribution and discovery over design control, and would rather pay a revenue share than a monthly fee while their audience is small.
Setup time	Under an hour to a first landing page and broadcast; free migrations from competitors are handled by Kit's team, which removes most of the switching effort for established lists.	Under an hour, and it is the fastest setup in this entire category. Choose a name, pick a theme, write a post, publish. There is no list configuration, no sending domain to authenticate, no template to build, and no deliverability setup, because none of that is exposed to you.
Learning curve	Low for broadcasts and forms; moderate for the tag-and-automation model, which rewards planning your tag taxonomy before importing a messy list.	Almost none for publishing. The genuine learning curve is in the network: understanding how Notes, restacks, recommendations, and the leaderboards drive growth is where writers who succeed differ from those who do not, and that is a social skill rather than a software one.
Platforms	Web app, REST API, Kit MCP, Kit App Store integrations	Web application, iOS and Android apps, Substack TV for Apple TV and Google TV, RSS feeds for posts and podcasts
Compliance	GDPR-aligned processes (self-reported), CAN-SPAM tooling	EU-US Data Privacy Framework certified, UK Extension and Swiss-US DPF certified, GDPR with Bird and Bird as EU and UK representative, CCPA policy published separately
Founded	2013	2017
Headquarters	Boise, Idaho, US (fully remote team)	San Francisco, California, United States
Ownership	Bootstrapped, founder-led	Private, venture-backed, founder-led

Strengths and limitations

Kit

Strengths

Creator Network and Paid Recommendations make the platform itself an acquisition and income channel, a structural advantage no generic ESP matches.
Free plan covers 10,000 subscribers with unlimited sends, pages, and forms, one of the most generous free ceilings in email marketing.
Native commerce (products, subscriptions, tips) removes the need for a separate checkout stack at small scale.
Visual Automations plus tag-based subscriber records is a mature, coherent automation model refined over a decade.

Limitations

Expensive per subscriber next to MailerLite and EmailOctopus; the premium only pays off if you use the network and commerce features.
The free plan's single basic automation makes it a broadcast tool in practice; any funnel work forces the Creator upgrade.
No transactional email API for product-triggered messages, so SaaS and app teams need a second provider.
Email template design is deliberately minimal and text-forward; brands wanting heavily designed, image-rich campaigns will find the editor thin next to MailerLite's block library.

Substack

Strengths

Free to publish and send at any scale, with no subscriber cap, no send cap, and no charge for inactive or unsubscribed readers, which is unmatched in this category.
The network is a real distribution advantage: Notes, recommendations, category leaderboards, the apps, and Substack TV together originate a large share of new subscriptions for many publications.
Monetization is frictionless. Turning on paid subscriptions is a switch, with founding tiers, group and gift subscriptions, trials, and coupons all handled natively through your own Stripe account.
Genuinely multi-format: written posts, podcast hosting with syndication to Apple and Spotify, native video with monetization, and livestreaming, none of which cost extra.

Limitations

Ten percent of gross revenue forever, with no volume discount and no negotiated rate, which becomes a very large number for any publication that succeeds.
Paid billing relationships cannot transfer if you leave. Subscriber emails export cleanly but every paying subscriber has to re-subscribe on the new platform, and writers who migrate typically lose a meaningful share of them.
No custom CSS, no custom HTML email templates, and only preset themes with three homepage layouts, so every Substack looks recognizably like a Substack.
Segmentation is effectively free versus paid versus founding, plus sections. There are no tags, no behavioral segments, and no conditional content.

Pricing compared

Kit

Subscriber-count tiers across three plans (Newsletter free, Creator, Pro), with prices set by a list-size slider; unlimited email sends on every plan and commerce metered by a per-transaction fee instead of a subscription.

Newsletter (Free)$0
Creator$33/mo billed annually ($390/yr); $39 month to month
Pro$66/mo billed annually ($790/yr); $79 month to month

Kit is priced like the professional tool it is: at 1,000 subscribers, Creator costs roughly three times MailerLite's Comfort plan and about four times EmailOctopus Pro for the same list. What the premium buys is not the sending, it is the network: Creator Network cross-promotion, Paid Recommendations income, and native commerce are growth and revenue features no cheap ESP offers, and for a creator earning from their list the platform can plausibly pay for itself. For anyone who just needs a newsletter delivered, the cheaper half of this category does that job at a fraction of the price, and the free Newsletter plan's 10,000-subscriber ceiling is best understood as top-of-funnel marketing for the paid tiers.

Substack

No subscription fee and no sending charges. Substack takes 10 percent of gross paid subscription revenue, with Stripe processing fees on top, making the realistic all-in cost roughly 13.6 percent plus 30 cents per transaction. Free publishing is unlimited in both subscriber count and send volume.

Free publishing$0
Paid subscriptions10 percent of gross subscription revenue
Sponsorships0 percent during the beta

Substack's pricing is brilliantly designed for the writer who has not yet made anything and terrible for the writer who has. At zero revenue it is free in a way nothing else is, with no subscriber cap, no send cap, and podcast and video hosting thrown in, so the downside of trying is genuinely nil. The crossover comes fast. A publication earning $50,000 a year pays Substack $5,000, which is several times what Ghost(Pro) or beehiiv would charge to host the same operation with more control. At $200,000 a year the gap is roughly $20,000 annually. What you are buying with that money is distribution: Substack says over 30 percent of paid subscriptions now originate inside its own network, and for many writers that is worth more than the fee. The honest framing is that Substack is a growth channel that bills like a sales commission, and the question is whether it is still originating enough of your subscribers to justify the rate.

Editorial verdict on each

Kit

Kit is the strongest choice in this category for people whose business is their audience. No competitor combines automations, native commerce, and a genuine acquisition network the way Kit does, and the bootstrapped, open-books company behind it is the kind you can safely build a livelihood on. But the premium is real: purely as an email tool, Kit is outpriced by MailerLite and EmailOctopus and out-monetized on ads by beehiiv. Buy Kit when you will actually use the Creator Network, Recommendations, and Commerce; if you only need a newsletter delivered reliably, the same money buys three times the list elsewhere.

Read the full Kit profile

Substack

Substack is the best place in the world to start a paid newsletter and one of the more expensive places to run a successful one. The economics are genuinely aligned when you have nothing: free publishing at any list size, free podcast and video hosting, no charge for inactive subscribers, and a network that now originates a large share of new subscriptions through Notes, recommendations, and the apps. That alignment inverts as you grow, because 10 percent of gross revenue forever, with no volume discount, becomes tens of thousands of dollars a year while Ghost or beehiiv would charge a flat fee for more control. Add the near-total absence of segmentation and automation, no write API, no design control, and the fact that paid billing relationships cannot follow you out, and Substack starts to look like a growth channel that bills like a sales commission. Start here if you are building an audience from scratch and want distribution more than control. Plan your exit before the revenue makes leaving expensive, because the longer you wait, the more paying subscribers you stand to lose in the move.

Read the full Substack profile

Kit profile last reviewed 2026-08-22; Substack last reviewed 2026-08-22. Pricing is compiled from public sources and can change without notice. See our methodology.