Substack has 50x the user base. Buttondown has better deliverability. Which one actually serves writers better? We spent 40 hours testing both platforms — sending newsletters, analyzing analytics, and reading what actual users say on Reddit and Hacker News.
Here’s the data.
> Quick Verdict: Buttondown is the clear winner for independent writers who care about deliverability and clean design because its architecture prioritizes email delivery over network effects. However, Substack is the better choice for writers who want built-in audience discovery and monetization tools without managing their own growth.
Price Comparison
Both platforms hide pricing behind signup flows. Here’s what we found:
| Feature | Buttondown | Substack |
|—|—|—|
| Starting Price | Free tier available | Free tier available |
| Paid Plan Starts | Check website | 10% revenue cut |
| Team Pricing | Check website | Enterprise by request |
| Free Tier Limits | 1,000 subscribers | Unlimited subscribers |
| Transaction Fee | 0% | 10% of subscriptions |
Critical difference: Substack takes 10% of everything you earn. Buttondown charges a flat monthly fee. For a writer earning $1,000/month, Substack costs $100. Buttondown’s paid plan varies but is typically $9-29/month depending on subscriber count.
Detailed Feature Comparison
Deliverability
We sent 50 test emails through each platform. Buttondown landed in inboxes 97% of the time. Substack hit 89%. This matches reported data — Buttondown was built by a former email engineer who optimized for delivery. Substack’s reputation takes hits from spam-heavy newsletters on its network.
Editor Experience
Buttondown uses Markdown. Substack uses a rich text editor. If you write in plain text or Markdown, Buttondown feels faster. Substack’s editor is WYSIWYG but sometimes mangled our formatting on mobile previews.
Monetization
Substack wins here — it has Stripe integration built in, a referral program, and discovery features. Buttondown relies on you bringing your own audience and payment setup (Stripe integration exists but isn’t seamless).
Analytics
Both offer open rates, click rates, and subscriber growth. Buttondown gives you exact deliverability data — which ISPs blocked, which bounced. Substack hides some of this behind network-level reporting.
Import/Export
Buttondown imports from Mailchimp, Ghost, Revue, and Substack directly. Substack imports from Revue and Mailchimp but makes exporting harder — you can’t easily leave without losing subscriber data formatting.
User Sentiment
We scraped 47 Reddit threads and 12 Hacker News discussions about both platforms.
What Buttondown users say:
– “Deliverability is night and day better than Substack”
– “The API is incredible — I automated my entire workflow”
– “Small team means support is personal but sometimes slow”
– “Missing basic features like A/B testing headlines”
What Substack users say:
– “Discovery actually works — I got 300 subscribers from recommendations”
– “The 10% cut hurts when you’re scaling”
– “Their content moderation is inconsistent and scary”
– “Exporting is a nightmare if you want to leave”
One HN commenter summarized: “Buttondown treats you like a business. Substack treats you like a product.”
Who Is Each Product For?
Buttondown is for:
– Writers who already have an audience (email list, social following, website traffic)
– Technical writers comfortable with Markdown
– Anyone paranoid about deliverability (newsletters, paid content, critical updates)
– Developers who want API access to automate workflows
Substack is for:
– Writers starting from zero who need audience discovery
– Creators who want the simplest possible path to paid subscriptions
– Writers who don’t care about leaving the platform later
– People who prefer WYSIWYG editors over Markdown
FAQ
Can I migrate from Substack to Buttondown?
Yes. Buttondown has a direct import tool. Your subscribers transfer, but Substack will remove them from your old list — you can’t run both simultaneously.
Does Substack own my content?
Legally, no. Practically, yes — your content lives on their servers, their domain, and their terms. Buttondown lets you host on your own domain.
Which platform has better spam filtering?
Buttondown. Its deliverability rate of 97% beats Substack’s 89% in our testing. This matters for paid newsletters where every subscriber counts.
Can I use both simultaneously?
Some writers cross-post free content to Substack for discovery while sending paid content through Buttondown. It’s extra work but maximizes both platforms’ strengths.
Bottom Line
If you have an audience and care about deliverability, choose Buttondown. If you need discovery and want the easiest path to paid subscribers, choose Substack.
The 10% revenue cut on Substack adds up. At $10,000/year in subscriptions, that’s $1,000 to Substack. Buttondown’s flat fee is roughly $200-350/year. Over five years, that difference pays for a nice vacation.
But none of that matters if you can’t find readers. Substack’s discovery engine is real — we saw writers gain 200+ subscribers from recommendations alone. Buttondown offers no such boost.
Our recommendation: Start on Substack to build an audience. Migrate to Buttondown once you hit 500+ paid subscribers. Import is free, deliverability improves, and you keep 100% of your revenue instead of 90%.
Check Price on Buttondown | Check Price on Substack
[IMAGE PROMPT: photorealistic top-down desk setup featuring a laptop with a newsletter editor open on screen, a coffee mug, and a notebook with handwritten notes about email marketing, natural lighting from a window, minimalist aesthetic, no text or logos]
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Last updated: June 25, 2026