How to grow on Substack Notes
A practical Substack Notes strategy backed by data from 473,405 notes. Write short, post daily, study the outliers in your niche, and turn attention into subscribers.
Growing on Substack Notes comes down to three habits: post short notes often (in our analysis of 473,405 notes, notes under 100 characters broke out at nearly twice the rate of 600-word ones, and creators posting three or more notes a week had better per-note odds than occasional posters), study what already works for writers your size in your niche, and route the attention into your newsletter. This guide turns those three habits into a system you can run in under an hour a day.
Why Notes is worth your time
Notes is the discovery layer of Substack. Your articles mostly reach people who already subscribed; your notes reach people who haven't. When someone likes or restacks a note, it travels into their followers' feeds, which is how strangers find you. For most writers, Notes is the only place on Substack where a nobody can get discovered by somebody, which makes it the closest thing the platform has to a growth engine you control.
The numbers set honest expectations. Among the 3,000+ Substack creators tracked in Eden's index over the last 12 months, the median note earned about 10 likes, the top 10% of notes crossed 108, and roughly 1 in 10 notes reached 100 or more. Growth on Notes is not one viral moment. It is a repeated, boring bet where about a fifth of your notes will meaningfully beat your own baseline, and you want to take that bet as often as quality allows.
What the data says works
We ran the numbers across 473,405 notes for our best time to post on Substack study. Three findings matter for strategy, and only one of them is about timing.
Short notes win, and essay-notes are a real second lane. Measured against each author's own baseline, notes under 100 characters had a 24.2% chance of a breakout (at least 2x the author's median likes). Performance fell steadily as notes got longer, bottoming out at 14.1% for notes of 600 to 1,200 characters, then recovered to 22.3% for notes over 1,200 characters. The middle is the dead zone: too long to hit like a one-liner, too short to deliver like an essay.
| Note length | Share of notes | Breakout rate |
|---|---|---|
| Under 100 characters | 20% | 24.2% |
| 100 to 279 | 39% | 19.2% |
| 280 to 599 | 27% | 17.3% |
| 600 to 1,199 | 10% | 14.1% |
| 1,200 and up | 4% | 22.3% |
Cadence compounds. Creators posting three or more notes a week had a higher breakout rate per note (about 20%) than creators posting less than weekly (about 18%). Posting more didn't dilute performance, it slightly improved it, and every extra note is another draw from the same roughly one-in-five distribution.
Timing barely matters. Across every hour of the week, breakout rates ranged from about 18% to 21%. Post at a reasonable time and spend the saved energy on the note itself. The full hour-by-hour tables are in the study.
Study what already works in your niche
The fastest way to learn Notes is not writing 500 notes. It is reading the 50 that already broke out for writers like you.
This is what Eden's Discover feed is built for. It indexes Substack alongside X, LinkedIn, Instagram, TikTok, and YouTube, and scores every post against its own author's baseline. A note from a 400-follower writer that did 8x their normal numbers surfaces just as loudly as a big name's hit, which matters because you want patterns that work without an audience, not patterns that only work with one.
A concrete weekly routine:
- Filter Discover to Substack, your topic, and an outlier multiplier of 3x or more.
- Add a follower-range filter around your own size, so you study peers rather than celebrities.
- Save the notes that stop your scroll to a board. Aim for 10 to 15 a week.
- For each saved note, write down the mechanism in one line: what promise, tension, or confession made it travel.
After three or four weeks you will have a private swipe file of what your corner of Substack actually rewards, which beats any generic list of hooks.
Build a creator list and make it your feed
The default Notes feed optimizes for engagement, not for your education. Build your own instead: pick 20 to 50 Substack writers in and around your niche, and follow them as a creator list in Eden, which turns them into a single feed sorted by what overperformed. Ten minutes a day reading that list does two jobs at once: it keeps your swipe file growing, and it gives you honest targets to engage with, because thoughtful replies to mid-size writers in your niche are still the cheapest distribution on Substack.
Turn patterns into your own notes
Studying winners only pays if it changes what you publish. The workflow that keeps it honest: steal the pattern, never the words. A note that broke out because it opened with a confession becomes a template ("confession, cost, lesson"), and you fill it with your own material.
Eden shortens that loop. A Boost remixes any saved note into a draft in your own voice in one click, and a voice-trained Custom AI drafts from your writing samples so the output sounds like you rather than like everyone else's AI. Treat both as first drafts: the notes that grow accounts are the ones only you could have written, and the tooling exists to get you to that version faster.
Show up daily without living in the feed
The cadence data says three to seven notes a week minimum, and the compounding argument says more is better as long as quality holds. The failure mode is trying to do this live every day, drifting into the feed, and losing the morning.
The fix is batching: write 5 to 10 notes in one sitting, then schedule them across the week. Substack's own composer can now schedule a single note natively, which covers the occasional poster. For a batch you want a real queue — default posting slots, reshuffling a week at once, and cross-posting the same ideas to X or Threads — which is why we built Substack scheduling into Eden: text notes are handed to Substack's own scheduler and publish with your devices off. Batch on Sunday, engage for 15 minutes a day, and the system runs whether or not you feel like showing up.
Convert attention into subscribers
Notes attention decays; subscribers compound. Close the loop deliberately:
- Make your profile do the selling. The one-line bio and publication name are what a stranger sees after a great note. Say who the newsletter is for and what it does for them.
- Let your articles feed your notes. Every essay you publish contains 5 to 10 note-sized ideas: the sharpest claim, the counterintuitive stat, the one-paragraph story. Republishing those as notes is not recycling, it is distribution.
- Occasionally point at the newsletter. Most notes should stand alone, but when a note clearly extends an essay, say so and link it. The ratio that keeps trust is many standalone notes for every promotional one.
Frequently asked questions
How often should I post on Substack Notes?
The data says at least three notes a week, and daily if you can hold quality. In our analysis, creators posting 3+ notes a week had a slightly higher breakout rate per note than occasional posters, so volume compounds rather than dilutes. Batch-writing plus scheduling makes daily posting a one-sitting-per-week job.
How long should a note be?
Under 100 characters or over 1,200, based on 473,405 notes. One-liners break out at 24.2% and essay-notes at 22.3%, while the 600-to-1,200-character middle bottoms out at 14.1%. Write punchlines or write essays, and be suspicious of everything in between.
What is the best time to post on Substack Notes?
It barely matters: breakout rates across every hour of the week sit between roughly 18% and 21%. Quiet hours (early morning US time, Mondays, weekends) have a small edge. The full tables are in our best time to post on Substack study.
Do I need Notes to grow a Substack at all?
No, plenty of publications grow through recommendations, SEO, or an audience elsewhere. But Notes is the only discovery surface inside Substack you can work daily for free, and it rewards exactly the skill you already have as a writer. If you are starting from zero, it is the highest-leverage channel on the platform.
Can I cross-post my X or Threads content to Notes?
Often, yes, and it is a sensible starting point since short text travels similarly on both. A scheduler that supports both networks lets you write once and queue everywhere; Eden covers X, Threads, LinkedIn, and Substack in one composer, and we compared the alternatives in the best social media schedulers for creators. Just watch which ideas actually land on Notes, because Substack's audience skews toward readers, and adjust rather than mirror blindly.
Everything in this system, the outlier research, the creator lists, the boosts, and the swipe-file boards, is what Eden does all day. The free plan includes 100 saved items and 50 AI credits with no card required, so you can study your niche's outliers today. Start free.