Klaviyo vs Postscript
Side-by-side from the Top 11 ranking of The 11 Best Email Marketing Platforms for Ecommerce (2026). Last verified June 11, 2026.
The short answer
Klaviyo ranks higher on Top 11 (#1 vs #11) for Ecommerce brands running flows and campaigns. Unbeatable Shopify data integration for powerful segmentation.
At a glance
| Klaviyo | Postscript | |
|---|---|---|
| Top 11 rank | #1 / The 11 Best Email Marketing Platforms for Ecommerce (2026) | #11 / The 11 Best Email Marketing Platforms for Ecommerce (2026) |
| Score (out of 9.4) | 9.4 | 7.1 |
| Best for | Shopify power users | SMS-first with email add-on |
| Pricing | $$$ ($200 to $1,500+/mo) | $$$ ($200 to $1,500/mo) |
| HQ | Boston, USA | San Francisco, USA |
| Founded | 2012 | 2018 |
Klaviyo
Unbeatable Shopify data integration for powerful segmentation.
www.klaviyo.comSee full entry in The 11 Best Email Marketing Platforms for Ecommerce (2026)
Postscript
A top-tier SMS platform adding email capabilities.
www.postscript.ioSee full entry in The 11 Best Email Marketing Platforms for Ecommerce (2026)
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.