Substack is the only social platform compared on this site that emails every post to the inbox of each person who subscribed to the writer's newsletter.
Five facts decide whether Substack is worth growing:
- Visits to Substack.com were up 37% in the year to September 2026.
- Over half of people who subscribe to a Substack newsletter find it in Substack's app or through another writer's recommendation.
- A Substack post takes about 3 hours to write.
- Substack keeps 10% of what readers pay a writer for a Substack subscription.
- About 2 to 3% of a Substack newsletter's free subscribers start paying the writer a monthly or yearly fee.

Substack is a newsletter plus a social app. Substack emails every post to the writer's subscribers
Most social platforms decide which of your followers see each post. Substack emails every post to everyone who subscribed to your newsletter with their email address. Strangers see your Substack posts only if the Substack app shows those posts to them.
- Substack emails every post you publish to your newsletter subscribers.
- No other social platform emails every post to the people who follow an account.
- Substack's app has a short-post feed called Notes.
- Substack Notes works like Threads.
- Substack Notes are never emailed to subscribers.
- A reader can follow you in the Substack app without subscribing to your newsletter.
- A Substack app follower gets none of your newsletter emails.
- Substack costs a writer nothing until readers pay a monthly or yearly fee for the writer's Substack newsletter.
- A Substack post can be an article, a podcast, a video or a livestream.

Substack visits rose 37% in a year. Twice as many Substack writers earned money in 2026 as in 2025
Substack's visits, its visits from search engines and the number of writers earning money from readers all rose in the last year.
- Substack.com had 172.2 million visits in September 2026, up 37% in a year.
- Visits to Substack from search engines rose almost 300% between July 2023 and July 2026.
- More than 100,000 writers earned money on Substack in June 2026, double the year before.
- Paid subscriptions to Substack writers reached 5 million in March 2025.
- Substack has announced no count of paid subscriptions since March 2025.

Over half of Substack readers find newsletters in Substack. A new writer needs no existing audience
On most newsletter tools a new writer has to find every reader outside the tool. On Substack, readers find new writers in Substack's app and through other Substack writers' recommendations.
- Over half of the people who subscribed to a Substack newsletter in 2024 found that newsletter in Substack's app or through another writer's recommendation.
- 30% of readers who started paying a Substack writer in 2024 found that writer in Substack's app or through another writer's recommendation.
- Readers started 32 million free subscriptions to Substack newsletters from inside Substack's app in the three months to October 2025.
- Readers already paying for one Substack newsletter are two and a half times as likely to pay for a second Substack newsletter as readers who pay for none.
- Every figure about readers finding newsletters through Substack's app and recommendations comes from Substack itself.
- No independent source has checked Substack's figures about readers finding newsletters through Substack's app and recommendations.
| Platform | How a stranger finds you | Is the platform growing? | Links to other websites in posts | Do you get the reader's email address? | How long people keep finding a post |
|---|---|---|---|---|---|
| Strong, over half of new Substack subscribers find the newsletter they subscribe to in Substack's app or through another writer's recommendation | Growing, visits up 37% in a year | Clickable, no evidence that Substack shows posts with links to fewer people than posts without links | Yes, every subscriber's email address, in a list you can download | Lasting, each post stays in the subscriber's inbox and on the web | |
| Good, 761 views a post for accounts with under 2,000 followers | Growing, daily users up 21% in a year | Clickable, but fewer people see posts with links than posts without links | No | Hours | |
| Moderate, strangers find you through Bluesky starter packs (shared lists of accounts to follow) and the Discover feed | Shrinking, monthly users down 27% in a year | Clickable, Bluesky shows posts with links to as many people as posts without links | No | Hours | |
| Almost none, under 100 views a post | Shrinking, daily users down 13% in a year | Hidden, X shows posts with links to almost nobody | No | Minutes, about 43 minutes | |
| Good, a post reaches 20 to 40% of your connections | Growing, 1.2 billion members | Clickable, but fewer people see posts with links than posts without links | No | Days |

Substack's app feed shows posts that lead readers to subscribe, not posts that keep people scrolling
Substack's app has a scrolling feed like other social apps. Substack's feed favours posts that lead readers to subscribe to the writer's newsletter, not posts that keep people scrolling longest.
- Mike Cohen, Substack's head of machine learning, says Substack's home feed is built to get readers to subscribe, while other social apps are built around time spent scrolling.
- Substack's feed picks posts based on your language, your location, the newsletters you subscribe to and the writers you follow.
- Links in Substack posts and in short Substack notes are clickable.
- No evidence shows Substack showing posts with links to fewer people than posts without links.
- 87% of Substack newsletters are in English.
- About 54% of visits to Substack come from the US.

A weekly Substack post takes about 3 hours to write, the main cost of growing a Substack
Writing a weekly Substack post takes about 3 hours. About 3 hours a week of writing is the main cost of growing a Substack newsletter.
- In the 2026 survey of 1,042 content marketers by Orbit Media, a web design agency, the average blog post took 3 hours 20 minutes to write.
- In a study of 1.2 million Substack and LinkedIn newsletters by Reletter, a newsletter database company, the 50 newsletters with the most subscribers averaged 871 words an issue.
- In a study of 1.2 million newsletters by Reletter, a newsletter database company, a typical newsletter averaged 451 words an issue.
- In a study of 1.2 million newsletters by Reletter, a newsletter database company, the 50 newsletters with the most subscribers sent an issue every 13 days.
- In a study of 1.2 million newsletters by Reletter, a newsletter database company, the newsletters outside the top 50 by subscribers sent an issue every 19 days.
- When Ciler Demiralp, who writes the newsletter Newsletter Circle, analysed 75,000 Substack newsletters in July 2024, 44% had sent nothing for over three months.
- A writer posting weekly is already more active than the 44% of Substack newsletters that sent nothing for over three months.
Use Camera to Clipboard to put phone photos into a Substack post you write on a computer
Substack posts are usually written on a computer. Your photos are usually on your phone. Camera to Clipboard, one of my own apps, copies phone photos onto your computer's clipboard.
- A photo taken in Camera to Clipboard lands on your computer's clipboard, ready to paste into the Substack editor.
- Camera to Clipboard sends screenshots from your phone's photo library to your computer, one at a time or several at once.
- Substack found that readers sign up to a newsletter twice as often from posts with a social preview image (the picture shown when a post is shared) as from posts without one.

Substack keeps 10% of what readers pay. With card fees, a writer loses 13 to 16% of each payment
A free Substack newsletter costs the writer nothing. A writer pays fees only once readers pay a monthly or yearly fee. Substack takes 10% of each reader payment. Stripe, the card payment company, takes about 3.6% plus 30 cents from each reader payment. Apple takes up to 30% of each payment made in Substack's iPhone app in the first year of each subscription.
- Substack takes 10% of what readers pay you, and nothing while your newsletter is free.
- Card payment fees take about 3.6% plus 30 cents from every payment a reader makes on Substack.
- Substack's 10% cut plus card fees comes to about 13 to 16% of what readers pay.
- Readers who subscribe in Substack's iPhone app pay through Apple.
- Apple takes up to 30% of each payment made in Substack's iPhone app in the first year of each subscription.
- A writer charging $8 a month on Substack needs about 610 paying subscribers to earn $50,000 a year after fees, by my own arithmetic.
| Newsletter platform | Cut of what readers pay | Monthly cost to you | Paying readers come with you if you leave | How readers find you inside the platform |
|---|---|---|---|---|
| Substack | 10%, plus card fees | Free | Card payers yes, iPhone app payers no | Yes, over half of new Substack subscribers find newsletters through Substack's app or other writers' recommendations |
| beehiiv | 0%, card fees only | Free to 2,500 subscribers, then from $69 a month, billed yearly | Yes, through Stripe | Paid Boosts, you pay another beehiiv writer about $1.50 to $3 for each reader who subscribes to you through that writer's recommendation |
| Ghost | 0%, card fees only | $29 a month, billed yearly, for a newsletter with 1,000 subscribers | Yes, through Stripe | None |
| Kit | 3.5% plus 30 cents, card fees included | Free to 10,000 subscribers | Yes | Paid recommendations, Kit keeps 23.5% of what one writer pays another for a recommendation |
| Patreon | 10%, plus card fees, for pages started after August 2025 | Free | No | None |
| Medium | No subscription of your own, Medium pays you by how long paying Medium members spend reading your posts | Free | No, you never get your readers' email addresses | Medium's own feed |

Expect only 2 to 3% of a Substack newsletter's free subscribers to start paying the writer
The share of a Substack newsletter's free subscribers who start paying a monthly or yearly fee decides whether that newsletter makes money.
- Substack's own guide says 5 to 10% of a newsletter's free subscribers start paying a monthly or yearly fee.
- Across hundreds of Substack newsletters whose writers published what share of their free subscribers pay, collected by Casandra Campbell, who writes the newsletter Really Good Business Ideas, the typical newsletter had 3% of its free subscribers paying.
- Of the Substack newsletters whose writers published what share of their free subscribers pay, only about 20% had more than 5% of their free subscribers paying.
- Substack told Casey Newton, a tech journalist who writes the newsletter Platformer, to expect 10% of his newsletter's readers to pay a subscription.
- About 5% of the readers of Platformer, the tech journalist Casey Newton's newsletter, actually paid a subscription.
- A Substack newsletter with 10,000 free readers can expect about 250 paying readers if 2.5% of free readers pay.

Your email list leaves Substack with you. Readers who pay through Substack's iPhone app do not
Keeping your readers' email addresses is the main reason to choose a newsletter over a social platform. Readers who pay through Substack's iPhone app cannot move with their writer when the writer leaves Substack.
- Substack lets you download your whole email list in one click.
- Readers paying for your Substack by card move with you when you leave Substack, because they pay through your own account with Stripe, the card payment company.
- Readers paying through Substack's iPhone app cannot move with you when you leave Substack, because those readers pay Apple, not you.
- Substack app followers are not on your email list and are not in the email list file Substack lets you download.

Substack emails reach the Gmail Primary inbox 93% of the time, more often than rival tools do
A newsletter is only worth growing if its emails land in the inbox tab people read. In Gmail, the inbox tab people read is the Primary tab.
- In an August 2026 test by EmailTooltester, a site that reviews email tools, 93.1% of Substack emails sent to Gmail landed in the Primary inbox.
- beehiiv, another newsletter tool, landed 86.4% of its emails sent to Gmail in the Primary inbox in EmailTooltester's August 2026 Gmail test.
- Kit, another newsletter tool, landed 89.4% of its emails sent to Gmail in the Primary inbox in EmailTooltester's August 2026 Gmail test.
- Substack publishes no figure for what share of its emails readers open.
- The claim on statistics sites such as VoxBooster and WorldMetrics that 44% of Substack emails get opened has no source.
- Substack counts a reader tapping an app notification as that reader opening the email, so Substack's figures for opened emails cannot be compared with other newsletter tools' figures.

78% of Lenny Rachitsky's new subscribers found him through other Substack writers' recommendations
Lenny Rachitsky, a former Airbnb product lead, writes Lenny's Newsletter on Substack. Free recommendations from other Substack writers are built into every Substack newsletter. Substack recommendations have the strongest evidence of any way to gain Substack subscribers.
- A Substack recommendation shows your newsletter to every reader who subscribes to another writer's newsletter that recommends yours, at the moment they subscribe.
- In October 2022, 78% of the new free subscribers to Lenny's Newsletter, written by the former Airbnb product lead Lenny Rachitsky, found it through other Substack writers recommending it.
- The former Airbnb product lead Lenny Rachitsky estimates his Substack newsletter, Lenny's Newsletter, would have 500,000 subscribers instead of 1 million without Substack recommendations.
- Readers started 2 million Substack subscriptions from other writers' recommendations in a single month of 2024.

Post 3 or more short notes in your first week on Substack to gain more subscribers
Notes are Substack's short posts, like tweets. Substack notes show up in the Substack app feed, where new readers find you.
- Substack writers who posted three or more short Substack notes in their newsletter's first week gained 50% more subscribers than writers who posted fewer notes, by Substack's figures.
- The claim that posting three short Substack notes every week makes a newsletter gain subscribers 50% faster has no source.
- Over 1,900 readers subscribed to the cookbook author Ali Slagle's newsletter in a month after other writers shared one of her Substack notes.
- Substack notes, Substack's short posts, are never emailed, so only people who open the Substack app read Substack notes.

Swap guest articles with other Substack writers to gain new subscribers
A guest article is an article you write that another Substack writer emails to their own subscribers. That writer's subscribers get your article with that writer's recommendation.
- Substack says writers who publish other writers' guest articles get up to 50% more new subscribers than writers who publish none.
- The former Airbnb product lead Lenny Rachitsky says his first thousand subscribers to Lenny's Newsletter came from two guest articles he wrote for other publications in 2019.
- When you cross-post (forward) another Substack writer's post, your subscribers get that post just as they would get a guest article.
- Cross-posting another Substack writer's post needs no extra writing from either writer.

Charge readers to get onto Substack's leaderboards, where new readers find newsletters
A Substack newsletter can appear on Substack's leaderboards only once its writer charges readers. New readers find Substack newsletters on Substack's leaderboards.
- Substack's leaderboards rank only paid newsletters, so a free newsletter can never appear on Substack's leaderboards.
- The former Airbnb product lead Lenny Rachitsky started charging readers for Lenny's Newsletter in its ninth month on Substack, after 36 posts.
- Writers earn 10 to 15% more over two years from readers on yearly Substack plans than from readers on monthly plans, by Substack's figures.
- About 5% of paying Substack readers who try to cancel their subscription and are offered a free month accept the free month.
- Over half of the Substack readers who accept a free month instead of cancelling then renew their paid subscription.
Use Repeat Recorder to rehearse the opening of a Substack livestream or podcast
Writers have been able to publish podcasts on Substack since 2019. Writers have been able to livestream on Substack since January 2025. The opening of a Substack livestream cannot be re-recorded. Repeat Recorder, another of my own apps, records you and plays each attempt straight back.
- Repeat Recorder plays back each recording and then starts recording again, so you can practise one opening line twenty times without touching your phone.
- Repeat Recorder was built for people rehearsing a speech, learning a language or training their voice.
- Repeat Recorder saves the recordings you want to keep into folders you name, one per episode if you like.

Substack keeps new newsletters out of Google until they pass a quality check it does not publish
Visits to Substack from search engines rose almost 300% between July 2023 and July 2026. But almost none of the visitors from Google search go to brand-new Substack newsletters.
- Substack's support team has told writers that Substack lets Google list a newsletter's posts only after the newsletter meets a quality standard Substack does not publish.
- The Substack writer Harshini reported in September 2025 that new Substack newsletters no longer get a sitemap, the file that tells Google which pages exist.
- The former Airbnb product lead Lenny Rachitsky says paid ads, work to rank in Google search and referrals did nothing to grow his newsletter, Lenny's Newsletter.
- Nobody has measured for how long people keep finding a Substack post through search engines.

Run a company's Substack like a magazine. Substack bans newsletters that exist mainly to advertise
Brands run only about 5% of active Substack newsletters. Brand newsletters that win readers on Substack read like magazines, not product catalogues.
- Substack's rules ban newsletters whose main purpose is advertising products or getting readers to visit other websites.
- A Substack writer can still promote their own product inside a newsletter whose main content is real articles.
- Brands made up 5.3% of active Substack newsletters in 2025.
- Brands made up 4.3% of active Substack newsletters in 2024.
- Readers of the luxury resale shop The RealReal's Substack newsletter bought over $334,000 of goods from the shop, by The RealReal's own tracking.
- An app maker should start a Substack newsletter only if people who never use the app would still read the newsletter.

Substack will not remove Nazi newsletters for their views. Journalist Casey Newton left in protest
Substack will not remove a newsletter just for extreme views. Because of that policy, the tech journalist Casey Newton moved his newsletter Platformer from Substack to Ghost, another newsletter tool, in January 2024.
- Substack refused to remove Nazi newsletters just for their views after the US magazine The Atlantic found 16 of them in November 2023.
- The tech journalist Casey Newton moved his newsletter Platformer from Substack to Ghost, another newsletter tool, in January 2024, in protest at Substack keeping Nazi newsletters up.
- The tech journalist Casey Newton says leaving Substack also saves his newsletter Platformer tens of thousands of dollars a year in fees.
- The culture writer Anne Helen Petersen, the journalist Lyz Lenz and the diet culture writer Virginia Sole-Smith moved their newsletters from Substack to Patreon, a membership platform, in October 2025.
- The culture writer Anne Helen Petersen said Substack refusing to limit hate speech was one of her reasons for leaving.
- While some writers were leaving Substack, the Nobel-winning economist Paul Krugman started writing regularly on Substack in December 2024.
- The former US Transportation Secretary Pete Buttigieg started writing on Substack in March 2025.
- Four writers from The Ringer, a sports and pop culture website, started Substack newsletters in 2026.

Every Substack growth tactic ranked by the evidence behind it
Most Substack growth tactics are backed only by Substack's own figures. No Substack growth tactic has an independent study behind it.
| Growth tactic | Evidence behind the growth tactic | Measured effect | Effort |
|---|---|---|---|
| Get other Substacks to recommend you | Substack data plus figures from Lenny Rachitsky, a former Airbnb product lead who writes Lenny's Newsletter | 78% of the new free subscribers to Lenny's Newsletter in October 2022 came from other Substack writers' recommendations | Medium effort, you ask other writers |
| Post 3 or more short Substack notes in your newsletter's first week | Substack figure, method unpublished | 50% more subscribers than writers who posted fewer notes | Low, three short notes |
| Add a social preview image to every post | Substack figure, from its own search guide | Twice as often, readers sign up from a post with a social preview image as from a post without one. People click a shared post with an image 40% more often than a shared post without one | Low, one picture |
| Swap guest articles with other Substack writers | Substack claim, no method | Up to 50% more new subscribers for writers who publish guest articles than for writers who publish none | High, a whole extra post |
| Recommend other Substacks | Substack figure, 2022, a pattern rather than proof | 3 times as often, writers who recommend other Substack writers get recommended, compared with writers who recommend no one | Low, a settings change |
| Offer an annual plan | Substack figure | 10 to 15% more, writers earn over two years from readers on yearly plans than from readers on monthly plans | Low, a settings change |
| Offer a free month before a reader cancels | Substack figure | About 5% of paying readers who try to cancel accept a free month. Over half of the readers who accept the free month then renew their paid subscription | Low, a settings change |
| Post every week | Advice only, no Substack study | Unmeasured | Medium effort, about 3 hours a week |
| Rely on Google search | Writers' reports only | Held back, Substack keeps new newsletters out of Google until they pass a quality check Substack does not publish | Low, Google listing your posts needs no work from you |
| Post 3 short Substack notes every week to "grow 50% faster" | No source at all | Unmeasured | Medium effort, every week |

Grow a Substack if you can write weekly for a year, not if you only want to send readers to an app
Substack suits writers who post every week for a year or more. But Substack does not suit a writer who mainly wants readers to visit other websites, because Substack's rules ban newsletters with that main purpose.
- Substack is the only newsletter tool where readers find a new writer through the tool's own app and other writers' recommendations.
- Every Substack email subscriber is an email address you keep.
- No social platform gives you its followers' email addresses.
- Moving from Substack to a newsletter tool that keeps none of what readers pay saves you money once readers pay you about $3,500 a year.
- A writer who leaves Substack loses the new readers who would have found that writer in Substack's app and through other Substack writers' recommendations.
- Skip Substack if you only want readers to click through to an app or a shop, because Substack's rules ban newsletters whose main purpose is advertising.
Conclusion: whether Substack is worth growing and how to grow there, in one glance
The Substack findings, from the biggest measured effect to the smallest:
- Over half of new Substack subscribers find the newsletter they subscribe to in Substack's app or through another writer's recommendation.
- 78% of the new free subscribers to Lenny's Newsletter in October 2022 found it through other Substack writers' recommendations.
- Substack writers who posted three or more short Substack notes in their newsletter's first week gained 50% more subscribers than writers who posted fewer notes.
- Visits to Substack.com rose 37% in the year to September 2026.
- Substack keeps 10% of what readers pay a writer.
- Substack's 10% plus card fees takes about 13 to 16% of what readers pay a writer.
- Expect 2 to 3% of a Substack newsletter's free subscribers to start paying a monthly or yearly fee.
- A Substack post takes about 3 hours to write.
- Your Substack email list comes with you if you leave Substack.
- Your Substack app followers stay behind if you leave Substack.