Postscript pricing
What Postscript really costs on Shopify, why it charges a monthly plan fee plus a per message rate, and the carrier fees and minimums that move the bill.
Postscript bills in two parts: a monthly plan fee and a per message rate that falls as you move up tiers. The Starter plan is free to open but carries a $49 monthly minimum spend, with texts at $0.015 each; Growth costs $100 a month and drops the rate to $0.01; Professional, the plan Postscript marks as most popular, costs $500 a month at $0.007 a text; and Enterprise is a custom quote. On top of every plan sit US carrier fees of about $0.004 per SMS, and an MMS costs roughly three times an SMS. It is built for Shopify and requires a store. Below is the model tier by tier, then the things that move your real spend.
Plans and prices
Plan fee plus per message, ShopifyPricing as of June 2026. Postscript charges a monthly plan fee plus a per message rate: Starter is $0 a month with a $49 monthly minimum at $0.015 per SMS, Growth is $100 at $0.01, Professional is $500 at $0.007, and Enterprise is custom. MMS costs about three times an SMS, US carrier fees of roughly $0.00418 per SMS apply on top, and Postscript requires a Shopify store. Listed rates cover the US and Canada. Check the vendor for current pricing.
Plan fee, per message rate and carrier fees set the bill.
Four things separate the headline plan price from what stores actually pay. Model these before you commit to a send volume.
Postscript pricing FAQ
How much does Postscript cost?
Postscript charges a plan fee plus per message. Starter is free with a $49 monthly minimum at $0.015 per SMS, Growth is $100 a month at $0.01, and Professional is $500 a month at $0.007, with US carrier fees on top. Pricing as of June 2026; check the vendor for current pricing.
Is Postscript free?
The Starter plan is $0 a month, but it carries a $49 monthly minimum spend plus per message charges, so it is not truly free once you send. New accounts get a 30 day trial with $100 in messaging credits. Verified June 2026; check the vendor for current pricing.
Does Postscript work without Shopify?
No. Postscript is built natively for Shopify and requires a Shopify store. If you are not on Shopify, a platform like Klaviyo SMS or a self serve texter like SimpleTexting is a better fit.
How much is Postscript per text?
About $0.015 per SMS on Starter, $0.01 on Growth and $0.007 on Professional, plus US carrier fees of roughly $0.004 per SMS. An MMS costs about three times an SMS. Rates cover the US and Canada.