Ecommerce tool

PostScript

PostScript is Shopify-first SMS with list growth, automations, and two-way threads rather than an email ESP.

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Who it's for

Who it is for: US-centric Shopify brands building SMS beside email. Who it is not for: brands that cannot run SMS compliance in their market. It suits operators who will still read the official docs the day they subscribe. It is a poor fit if you expected this directory page to be a second login, a live tracker, or a price calculator.

Caveats

TCPA and country rules are yours. International coverage and pricing vary. Pricing, quotas, and regional availability live on postscript.io. We will not invent a fee, a coverage map, or a rank. Related files include Attentive, Klaviyo, and Omnisend. Those are other listings, not a ranking. We do not publish star scores, discount badges, or a best-of list. Use this page for who the tool fits. Use the official site for the account, plan, and policy. Open postscript.io the day you subscribe. This file was written on 15 September 2026.

Visit official site

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