Postscript cut its SMS rates.
Permanently, for self-serve plans.

Postscript permanently lowered its self-serve SMS rates in May 2025 and offered new customers carrier-fees-only pricing for that quarter.

01Postscript permanently lowered its self-serve SMS rates amid tariff concerns.↗ businessinsider.com
02New customers that quarter paid only carrier fees.↗ businessinsider.com
03Current listing: Starter $49/mo minimum spend, then $0.009/SMS and $0.045/MMS + carrier fees (checked Oct 19, 2026).↗ apps.shopify.com

Published prices from each app's listing. “Unverified” means we haven't confirmed it from the vendor.

APP	PRICE	BEST FOR	SOURCE
Klaviyo	Free to install · email from $20/mo	Email, SMS and WhatsApp marketing; billed by active profiles.	↗ apps.shopify.com	View listing ↗
Omnisend	Free · Standard from $16/mo · Pro from $59/mo	Email, SMS and popups with automation.	↗ apps.shopify.com	View listing ↗
Mailchimp	Free · from $13 · from $20 · from $350/mo	Email, SMS, forms and automation; pricing based on contacts.	↗ apps.shopify.com	View listing ↗
Shopify Messaging	Free to install · 10,000 emails/mo free, then from $1 per 1,000	Shopify's own email, SMS and WhatsApp marketing app (formerly Shopify Email).	↗ apps.shopify.com	View listing ↗
Brevo PushOwl	Free · $19/mo · $79/mo	Email, web push, SMS and pop-ups powered by Brevo. Brevo's Shopify integration runs through this app.	↗ apps.shopify.com	View listing ↗
Attentive	Free to install; pricing billed by Attentive	Email and SMS platform; the listing shows no public plan prices.	↗ apps.shopify.com	View listing ↗

Updated Oct 19, 2026

Postscript cut its SMS rates.Permanently, for self-serve plans.