Create, collaborate &
grow with AI on Substack
Generate weeks of content in minutes, find collaborators, cross-post to LinkedIn, and track what drives growth – all powered by AI that learns your voice.
Loved by Substack creators
See what writers are saying about StackBuddy
"StackBuddy completely changed how I manage my Substack."
"A must-have tool for any serious Substack creator."
Start free. Upgrade when you're ready.
No credit card. No commitment. Full access to the free tier in under 2 minutes.
Start Free — No Card Required →🔥 Founding member pricing still available — locked in forever once you upgrade.
AI-powered tools to grow your Substack
Create content faster, reach more people, and understand what drives growth – all from one platform.
AI Content Engine
Turn one idea into a week of notes. Generate from topics, repurpose articles, refine your writing – all in your unique voice. The AI learns how you write.
Writer Profile & AI Voice
Configure your writing style, tone, and audience. The AI analyzes your past posts and uses custom instructions to generate notes that sound like you – not a robot.
Smart Scheduling
Plan weeks ahead with our clean queue view. Set time slots, auto-assign notes, naturalize timing, and let Substack publish automatically.
Collaborations Network
Discover other Substack writers, browse an interactive directory, save favourites, and connect for cross-promotions – completely free for everyone.
LinkedIn Cross-Posting
Automatically publish your notes to LinkedIn when they go live on Substack. Connect your account and grow your audience across platforms.
Analytics Dashboard
See engagement trends, discover your best posting times with a heatmap, track your top-performing notes, and get actionable insights to grow faster.
Link Tracking & Funnels
Create trackable short links (sbdy.io/yourlink) and measure clicks, unique visitors, conversions, and revenue from every traffic source.
Repurpose Any Content
Turn long-form Substack articles, blog posts, or any URL into multiple engaging notes with one click. Maximize the reach of every piece of content.
Batch Content Creation
Generate multiple notes in one focused session, then schedule them across the week. Stay consistent without the daily grind.
Discovery Feed & Note Search
Explore a personalised daily feed of top-performing Substack notes from your niche. Search thousands of notes by topic, save the best to your library, and use AI to generate your own version in seconds.
AI Article Writer
Go beyond notes. Answer a few questions about your topic and get a full long-form Substack article generated in your exact voice — ready to publish, no editing degree required.
AI Image Generation
Create eye-catching images with DALL-E 3 or styled text graphics directly from your note content. Stand out in the feed without any design skills.
Built for Substack creators who want to grow
Whether you're building your first 100 subscribers or scaling to thousands, StackBuddy's AI creates content in your voice, publishes across platforms, and shows you what's actually working.
Meet the Creators
StackBuddy was born from a shared passion for Substack and a desire to help creators grow.
Patrick
Developer & Co-Founder
As a software developer, YouTuber, and Substack creator, Patrick wanted AI tools that actually understand a writer's voice. He built StackBuddy to help creators produce more content, reach more people, and grow faster.
Kristina
Marketing Pro & Co-Founder
Kristina runs The Online Writing Club on Substack and knows the challenges of growing a publication. Her insights into what writers actually need shaped StackBuddy into the tool it is today.
Frequently asked questions
Everything you need to know before you sign up.
No. StackBuddy is free to start and we never ask for a card until you choose to upgrade. Just create an account and you’re in.
The free plan gives you 10 scheduled notes per month, 10 AI credits, full access to the Chrome extension, and the entire Collaborations network (there’s no limit on that). It’s a real, usable plan — not a 7-day trial.
When you set up your Writer Profile, StackBuddy analyses your past Substack posts and lets you describe your tone, audience, and style. The AI uses this profile every time it generates content — so notes feel like you wrote them, not a generic chatbot.
Yes — via the free StackBuddy Chrome extension. You schedule notes inside StackBuddy, and the extension pushes them into Substack's native scheduler. Substack then publishes the note on your behalf — so your laptop can be closed and you don't need to be online at publishing time.
Yes — LinkedIn cross-posting is a Pro feature. Connect your LinkedIn account once, and every note you schedule on Substack can automatically be published to LinkedIn at the same time.
You’ll see a prompt to upgrade inside the app. Your existing scheduled notes are never cancelled. You can upgrade to Pro at any point to unlock higher limits.
Discovery is a personalised daily feed (Pro feature) that surfaces the highest-engagement notes from top Substack creators in your niche. You can save notes to your library, search by topic, and use AI to generate your own version in one click.
Absolutely. There’s no lock-in. Cancel from your account settings at any time and you keep Pro access until the end of your billing period.
Your content is yours. We do not sell or share your writing, and we do not use your notes to train AI models. Your Substack data is used only to power your own StackBuddy experience.
A limited one-time purchase that gives you Pro access forever — including all future updates. It’s capped at 100 founding members — once those seats are gone, the offer ends.
Ready to let AI supercharge your Substack?
Join creators who use AI to write faster, reach more people, and grow their audience across platforms.
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