Klaviyo
Email & SMSThe DTC email & SMS standard
SMS specialist for Shopify
Postscript is the SMS specialist for Shopify stores, with compliant, high-deliverability campaigns. Pair it with Klaviyo or Omnisend for the email side.
The DTC email & SMS standard
Multichannel automation for mid-market
Popups plus email capture
Lightweight Shopify Email
Beginner-friendly email marketing
Automation-first CRM & email
Enterprise-grade SMS marketing
Creator-focused email marketing
Affordable multi-channel (email/SMS/chat)
Postscript is a email & sms tool for DTC, Shopify and independent e-commerce stores. Postscript is the SMS specialist for Shopify stores, with compliant, high-deliverability campaigns. Pair it with Klaviyo or Omnisend for the email side.
Postscript is listed at Free–paid tiers. Vendor pricing changes often — confirm the current rate on the official site before subscribing.
Postscript scores 4.3/5 in our hands-on review. Its main strengths: sms-focused, shopify-native, compliant workflows. The trade-offs to accept: sms only (pair with an email tool), costs grow with volume.
If Postscript is not the right fit, the closest options in our Email & SMS shortlist are Klaviyo (4.6/5, Free–scales with list), Omnisend (4.4/5, Free–paid tiers), ActiveCampaign (4.3/5, $29–paid tiers). Compare them side by side before you commit.