Postscript Review (2026): Shopify SMS Pricing, Plans and What a Message Really Costs
Postscript's Starter, Growth and Professional plans explained – monthly fees, per-SMS and MMS rates, carrier fees, the $49 minimum and 30-day trial – plus who it suits.
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Verdict: Postscript is an SMS-first marketing platform built for Shopify stores. You can start on the Starter plan with no monthly fee – you pay per message ($0.009 per US SMS) with a $49 monthly minimum spend – and move to Growth ($100/month) or Professional ($500/month) for lower per-message rates and more support. Every plan starts with a 30-day free trial. It’s a strong choice if SMS is a core revenue channel; if you want email and SMS in one tool at a low price, an all-in-one platform may be simpler.
Prices from Postscript’s pricing page and Shopify App Store listing, checked October 21, 2026. Per-message prices exclude carrier fees. This review is based on published information, not a hands-on test.
Plans and per-message prices (US)
| Starter | Growth | Professional | Enterprise | |
|---|---|---|---|---|
| Monthly fee | $0 | $100 | $500 | Custom |
| Minimum | $49 monthly spend | – | – | – |
| SMS | $0.009 | $0.008 | $0.007 | Custom |
| MMS | $0.045 | $0.03 | $0.024 | Custom |
| Includes | Campaigns, automations, unlimited segments, toll-free number, 2 opt-in keywords, branded short link subdomain | + Unlimited opt-in keywords, live chat & email support | + Enhanced analytics, priority support, API access, no “Powered by Postscript” on opt-ins | + Dedicated CSM, product recommendations, data warehouse push, RCS option |
Swipe to see the full table →
Carrier fees are extra. Postscript lists average US carrier fees of about $0.0033 per SMS and $0.008 per MMS, so a Starter SMS costs roughly $0.0123 all-in. The Shopify App Store listing also mentions a $100 credit for the first 30 days.
What a month might cost (example)
A store sending 10,000 SMS a month on Starter would pay about 10,000 × ($0.009 + $0.0033) ≈ $123 (above the $49 minimum). On Growth, the same volume is $100 + 10,000 × ($0.008 + $0.0033) ≈ $213 – Growth pays off for support and keywords rather than price at this volume; Professional’s lower rates matter at much higher volumes.
Illustrative maths using published rates; actual carrier fees vary.
Strengths and watch-outs
- Built for Shopify: install from the Shopify App Store; integrations listed include Shopify checkout, Klaviyo, Gorgias, Privy and Zapier.
- Well rated: 4.6/5 from 1,205 reviews on the Shopify App Store at the time of checking, though some recent reviews mention slower access to a human support rep.
- SMS only for now: Postscript’s email product is listed as a waitlist, so you’ll still need an email platform.
Who Postscript is for
Good fit: Shopify brands where SMS drives meaningful revenue and that want SMS-specific tools (keywords, two-way messaging, cart recovery).
Consider an alternative if: you want email and SMS together on one bill – see best SMS marketing apps for Shopify and Omnisend vs Klaviyo.
Postscript
Best SMS-first platformBest for: Shopify brands where SMS is a core channel
- Starter plan with no monthly fee
- Lower per-SMS rates on higher plans
- 30-day free trial on all plans
- Built for Shopify
- $49 monthly minimum on Starter
- Carrier fees on top of message rates
- No email product yet (waitlist)
Related: Postscript vs Klaviyo SMS
For a texting-first alternative our partners include SimpleTexting. See SimpleTexting
Key takeaways
- Postscript's Starter plan has no monthly fee, a $49 monthly minimum spend and $0.009 per US SMS.
- Growth costs $100/month with $0.008 per SMS; Professional costs $500/month with $0.007 per SMS.
- Carrier fees are extra, about $0.0033 per US SMS, so a Starter SMS costs roughly $0.0123 all-in.
- Every Postscript plan starts with a 30-day free trial, and the Shopify App Store listing mentions a $100 credit for the first 30 days.
- Postscript is SMS-only for now, with its email product on a waitlist, so you still need an email platform.
Frequently asked questions
How much does Postscript cost?
Starter is $0/month with a $49 monthly minimum and $0.009 per SMS; Growth is $100/month with $0.008 per SMS; Professional is $500/month with $0.007 per SMS. Carrier fees are extra.
Does Postscript charge carrier fees?
Yes. Postscript lists average US carrier fees of about $0.0033 per SMS and $0.008 per MMS on top of its message rates.
Does Postscript have a free trial?
Yes, every plan starts with a 30-day free trial, and the Shopify App Store listing mentions a $100 credit for the first 30 days.
Does Postscript do email marketing?
Not yet. Its email product is listed as a waitlist, so you'll need a separate email platform.
How much would 10,000 texts a month cost on Postscript?
Using published rates, about $123 on Starter (10,000 × $0.009 plus about $0.0033 carrier fee each). Actual carrier fees vary.