Letterhead vs Sailthru — switch to a complete platform built for content | Letterhead
Outgrown Sailthru? Switch to a complete platform built for content.
Sailthru is a personalization-led ESP for retail and media. Newsletter teams switch to Letterhead Suite — a complete email and audience platform — for real template control, content-first workflows, modern AI, and a platform that’s easier to run, at a better price.
Why teams choose Letterhead over Sailthru
Built for newsletters, easier to run, better priced.
Sailthru was built as a personalization-led ESP. Newsletter teams need template control, editorial workflows, and modern AI — without the cost and complexity.
Own your templates
Full template and layout control — restyle any edition without a developer or a support ticket.
Content-first workflows
Curation, editorial roles, approvals, and scheduling built for editions — and far easier to run day to day.
Modern AI, built in
AI curation, subject-line help, and content assistance live inside the workflow, not bolted on.
A better price
Newsletter operations at portfolio scale without enterprise-ESP pricing or long lock-in.
Head to head
Where Letterhead fits next to Sailthru.
| Capability | Letterhead | Sailthru |
|---|---|---|
| Scope | A complete email + audience platform, with a content engine. | Personalization-led ESP for retail and media. |
| Template control | Own your templates and layouts; restyle without code. | Templating often needs developer or support involvement. |
| Content & curation | RSS, bookmarks, AI curation, and editorial slots. | Zone/template-based; content sourced elsewhere. |
| Editorial workflow | Multi-role roles, approvals, and scheduling for editions. | Campaign and trigger setup. |
| Modern AI | AI curation, subject lines, and content help in-workflow. | Personalization and send-time optimization. |
| Ease of use | Built for editorial teams to run themselves. | Typically needs specialist setup. |
| Personalization & send-time | Reader-level content and send-time options. | Personalization and send-time optimization. |
| Price | Portfolio-scale pricing, no long lock-in. | Enterprise ESP pricing and contracts. |
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
See your Sailthru newsletters on Letterhead.
Bring a recent Sailthru send and your templates. We’ll show you the same program with full template control, modern AI, and an easier workflow — and exactly what the switch looks like.