AI engagement assistant

Grow on Substack in your own voice.

Notewell reads Notes and drafts thoughtful, in-character replies — so you show up like yourself, at a human pace, without living in the feed.

$10/mo after trial · bring your own AI key · runs in your browser

New here? Read the 5-minute setup guide →

How it works

From install to engaging in three minutes.

01Install

Adds a control panel to the side of your Chrome — no separate app.

02Teach your voice

Drop in your AI key and a few replies you've written. It learns how you sound.

03Press start

On Substack Notes, it drafts and posts in-character replies at a calm, human cadence.

04Stay in control

Set the count, choose what to skip, and watch every action in a live log.

Read the full setup guide →
Why Notewell

Engagement that reads as a person, not a script.

Sounds like you

Trained on your own replies — no flattery, no echo, no generic AI filler.

Human-paced

Reads each note and spaces replies out, so it never looks like a bot firing on a timer.

You stay in control

Your account, your browser, your caps and skip rules. Stop on a dime.

Bring your own key

You pay for the AI you use — pennies a day — at cost. The $10 is just Notewell.

Pricing

One plan. Three-day trial. Cancel in a click.

$10 / month
// 3-day free trial — not charged if you cancel
  • Unlimited engagement runs
  • Voice-trained replies
  • Live activity log + skip rules
  • Use your own AI key (at cost)
Start free trial
FAQ

Good questions.

Is my account safe?

Notewell runs in your own browser and logged-in session — nothing touches our servers. You set how many posts it engages and how slowly it moves, and the pace stays deliberately human. As with any engagement tool, you're responsible for staying within Substack's terms.

What's "bring your own key"?

Notewell writes with your own OpenRouter AI key, so the writing cost (usually pennies a day) is billed to you directly at cost. The $10/month is just for Notewell.

Will the replies sound robotic?

No. You paste in a few of your own Notes replies and Notewell matches your voice, vocabulary, and rhythm — reflecting on each post rather than parroting it.

Can I cancel?

Anytime, in one click, from your account page. Cancel during the 3-day trial and you're never charged.