iynbox vs Buttondown.
Buttondown: a small, simple newsletter tool loved by writers and developers, priced by active subscribers. Here's how it compares with iynbox for UK writers.
Last checked 22 October 2026. Platforms change their prices; check Buttondown pricing for the latest.
| Feature | iynbox | Buttondown |
|---|---|---|
| Paid subscriptions | A free plan to start; paid plans lower the platform fee. Exact pricing goes to the early list before we open. | No cut of paid subscription revenue; card processing fees apply. |
| Free plan | Yes. Claim yourname.iynbox.com free today; your page goes live when you confirm. | Free for your first 100 subscribers. |
| Sponsors | iynbox finds sponsors and places them in your free editions. You earn a share of the sponsor spend once you have more than 50 subscribers, and you can block categories. | No built-in sponsor placement. |
| Paid editions | Never carry sponsors. | — |
| Your address | yourname.iynbox.com, with readers able to subscribe before your first issue. | A Buttondown archive page, or your own domain. |
| Based in | The UK, built for UK writers, readers and sponsors. | — |
| Status | Opening soon. Join the early list to hold your name. | Open. |
What iynbox does differently
- Sponsors come to you. iynbox briefs, reviews and places sponsors by topic, so you never have to sell ad slots yourself.
- Paid twice: subscription income from readers, plus a share of sponsor spend on your free editions.
- Your name and page from day one, at yourname.iynbox.com.
When Buttondown may suit you better
- You want a minimal, Markdown-first tool with a public API.
- Your list is small and you don't need sponsors.
Questions people ask
- Is Buttondown free?
- Buttondown is free for your first 100 subscribers, then priced by how many active subscribers you have.
- When does iynbox open?
- Soon. We open in list order, writers first. Claim your name now and confirm your email to hold your place.
iynbox for writers
Try iynbox free
Claim yourname.iynbox.com. Your page goes live when you confirm, and readers can subscribe before your first issue.
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Buttondown is a trademark of its owner. iynbox isn't affiliated with or endorsed by Buttondown. Spotted something out of date? Email hello@iynbox.com and we'll fix it.