Choose Buttondown if you need
- API. We haven't found it on Postcards' website.
- Integration with Stripe, WordPress or Discord. We haven't found them on Postcards' website.
- GDPR. We haven't found it on Postcards' website.
At a glance
- Postcards has a free plan. We haven't confirmed one for Buttondown.
- Postcards' lowest paid plan is Plus at $16 per month, as of November 14, 2026.
- Only Buttondown lists API.
- Only Postcards lists Web.
- They list no integrations in common.
- Only Buttondown lists GDPR.
- Only Postcards lists SSO.
- Both have a public API.
From each tool's own website, checked on the dates below, and from published reviews.
Which to choose
From the facts checked for both tools, not from opinion. A fact we haven't confirmed for one of them is never counted.
Choose Postcards if you need
- Web. We haven't found it on Buttondown's website.
- Integration with Mailchimp, HubSpot or Klaviyo. We haven't found them on Buttondown's website.
- SSO. We haven't found it on Buttondown's website.
Buttondown
Nobody has reviewed Buttondown yet. Its rating shows once it has 3 reviews.
Review Buttondown
Postcards
Nobody has reviewed Postcards yet. Its rating shows once it has 3 reviews.
Review PostcardsThe facts
- What it does
- ButtondownNewsletter software for people like you
- PostcardsAn email builder for HTML emails with a drag-and-drop editor, templates, AI generation and one-click export.
- Free plan
- ButtondownNot confirmed
- PostcardsYes
- Pricing
- ButtondownBy subscriber count, with add-ons
- PostcardsNot confirmed
- Paid plans from
What they share
From the platforms and integrations each website lists.
Platforms
BothNone in common
Only Buttondown
- API
Only Postcards
- Web
Integrations
BothNone in common
Only Buttondown
- Stripe
- WordPress
- Discord
- Shopify
People who switched
Reviewers who say they used one of these before the other.
No reviewer has said they moved between Buttondown and Postcards yet.
Used either of them?
Your review makes this comparison better for the next person. Review Buttondown or review Postcards.