Letterhead + Unbounce

Connect Unbounce to Letterhead via Zapier. Every landing page conversion becomes a newsletter subscriber automatically.

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You optimized the page. Now optimize what happens after.

Unbounce wins the conversion; Letterhead turns it into a compounding owned-audience asset.

Conversions become contacts

Form fills flow into Letterhead the moment they happen.

Variant-proof

A/B test all you like — every variant's signups land on the same list.

The promise gets kept

Subscribers get the newsletter your page sold them, from day one.

Live in minutes. No engineer required.

Letterhead is on Zapier, so connecting Unbounce is a standard Zap — start from the Unbounce + Letterhead page and follow the prompts. Prefer no middleman? Letterhead’s API and MCP server connect directly.

1. Connect both apps

In Zapier, connect your Unbounce and Letterhead accounts. No code — a couple of minutes, once.

2. Pick the trigger

Choose Unbounce’s “New Form Submission” trigger on your converting pages.

3. Point it at Letterhead

Add Letterhead’s contact action so each conversion becomes a subscriber automatically.

Unbounce and Letterhead, each doing what it does best.

Keep Unbounce where it’s strong. Zapier carries the data over, and Letterhead runs the newsletter on top — no code, no rip-and-replace.

What Unbounce handles

• Landing page building and hosting.
• A/B testing and AI optimization.
• Popups and sticky bars.
• Conversion analytics.

What Letterhead adds

• New conversions added to your audience automatically.
• Newsletter production, templates, and approvals.
• Audience segments and engagement intelligence.
• Monetization on the list your pages build.

Connecting Unbounce and Letterhead

How do I connect Unbounce to Letterhead?

Through Zapier. Connect both accounts, pick your Unbounce trigger, and add Letterhead as the action — the Unbounce + Letterhead page on Zapier walks you through it. Most teams are live in under ten minutes.

What does the Unbounce + Letterhead Zap actually do?

Choose Unbounce’s “New Form Submission” trigger on your converting pages. Add Letterhead’s contact action so each conversion becomes a subscriber automatically. From then on it runs automatically, every time.

Is there a native Unbounce integration?

The Unbounce connection runs through Zapier today, which covers the common workflow well. For a direct connection, Letterhead’s API and MCP server are available — and we build custom integrations, usually in days.

Do I need a developer to set this up?

No. The Zap is point-and-click in Zapier’s editor. If you can fill out a form, you can connect Unbounce to Letterhead.

What if we’re consolidating tools or moving off Unbounce?

Letterhead works either way — keep Unbounce running alongside your newsletter, or book a test drive and bring your stack; we’ll map what a consolidated setup would look like.

What customers say

Letterhead has been an invaluable resource for us. Not only did it meet our budget needs, but it also enabled us to create personalized, creative newsletters that made our brand stand out. Their flexible platform allowed us to grow and adapt as our subscriber list and needs changed.
Jessica Ford Director, Startup Digest, Techstars

It’s made newsletter advertising cleaner, more consistent, and far less time-consuming. Thanks to Letterhead, our newsletters have become the cornerstone of our strategy.
Danielle Hastings VP of Operations

We at the Patch local news network have worked with Letterhead to create a critical monetization engine. They’ve been the best kind of partner — striving to understand our needs, quick to respond, and building for the future. Couldn’t have done it without them!
Simone Wilson Senior Manager, Patch.com

Stop leaking conversions.

Open the Zapier setup and pipe Unbounce conversions into Letterhead — or book a test drive to see the full page-to-reader flow.

See the Zapier setup Book a test drive