How do scheduling slots work?

Scheduling slots are like a queue—they tell you how many notes you can have scheduled at one time. It's not a monthly limit. For example, if your plan includes 20 slots, you can schedule 20 notes. Once one note posts, that slot becomes available again, so you can schedule another note. This means you can post as many times as you want per month—you're just limited by how many you can have scheduled at once. Think of it like Buffer: you fill up your queue, posts go out, and as slots free up, you can add more.

We built Stacksweller with your account security as a priority. The tool only does what you could do manually—it just saves you time by scheduling your posts. That said, anytime you use a third-party tool to a platform, there's some level of risk. Substack can change their rules. We can't control that. What we can control: we don't do anything shady or automated that Substack prohibits and follow best practices.

I have multiple Substack accounts. Can I combine them in one subscription?

Due to Substack limitations, you'll need one StackSweller account per Substack account.

Stacksweller - Schedule Notes That'll Grow Your Substack

	Substack	StackSweller
Schedule a single note	✓	✓
Batch schedule a week of notes at once	✗	✓
Reschedule or reorder your queue	✗	✓
Repost your top-performing notes	✗	✓
See which notes drive subscribers	✗	✓
Turn long-form posts into Notes with AI	✗	✓

7 Ways StackSweller Helps You
Grow Faster on Substack

Pick Your Notes Posting Slots

Set your preferred posting times once, and unlike Substack -- StackSweller remembers them! Post at peak engagement hours, even while you sleep (and without leaving your laptop on.)

Turn Posts Into Notes

Our AI breaks your long-form posts into 7+ ready-to-publish notes. No more copying and pasting prompts. Fill your entire week's queue in MINUTES instead of hours.

See Which Notes Are Really Growing Your Audience

Most creators have no idea which notes bring in subscribers and which ones just get likes. In just 2 clicks, StackSweller reveals what's driving real growth — so you can do more of it (like giving it a respin with StackSweller AI 😉)

Batch Schedule Your Week

Write when you feel like it. Publish on a consistent schedule. Queue up a full week of notes in one sitting. StackSweller posts them at your chosen times.

Reschedule & Edit Notes Easily

Changed your mind? No problem. Drag to reorder, edit copy, or reschedule — all from one simple dashboard.

Repost Winners Automatically

Your best note from three weeks ago? Most of your audience never saw it. Repost top performers to squeeze more growth out of content you've already written.

Bulk Schedule Dozens of Notes in Seconds

Stop scheduling notes one by one. Paste all your notes at once and schedule dozens of them in seconds. Fill your entire queue in a single sitting.

How It Works

Get started in 4 minutes

Connect Substack

Quick and secure integration with your Substack account

Choose Slots

Set your content schedule and publishing times

Schedule Notes

Queue your notes, or let AI turn posts into Notes.

Grow

Watch your audience grow while you focus on writing

Analyze

See top Notes and let AI create fresh spins.

Frequently Asked Questions

Everything you need to know before pulling the trigger

Grow Your Substack
in Just 30 Minutes a Week

Substack's Native Scheduling Is Broken. Here's What It Can't Do: