Audyense
Postscript
Marketing · postscript.io
Overview
Postscript is an SMS and MMS marketing platform built specifically for Shopify and Shopify Plus merchants, covering opt-in popups, one-off campaigns, automated flows, segmentation, two-way conversations and revenue reporting. It launched on the Shopify App Store in 2018 and prices on a platform fee plus per-message model, with carrier fees billed on top. It is SMS-only rather than a combined email/SMS suite, and connects to email platforms and helpdesks through a large partner directory.
The problem Postscript solves
Shopify brands that have squeezed most of the return out of email hit a wall: SMS is the highest-open-rate owned channel, but running it means carrier registration, opt-in compliance and a data model their email platform was not built for. Postscript does SMS and nothing else on top of Shopify — popups for list growth, campaigns and automated flows, segmentation, two-way conversations and revenue attribution in one place — while integrating back into whatever email tool and helpdesk the brand already runs. The trade-off buyers hit is cost, since the platform fee is only one of three layers.
Decision context
Use these points to test whether the product fits your operation, not just whether it has a long feature list.
- Published starting price: $49 per month. Confirm user, usage, and feature limits for the plan you would actually buy.
- Deployment: cloud. Check security, data-residency, and access requirements for every team that will use it.
- Verified integrations include Shopify, Klaviyo, Mailchimp, Omnisend, Gorgias, Zendesk. Validate sync direction and plan limits for the connections that matter.
- This record was last checked on 7/25/2026; pricing and features can change.
How to evaluate Postscript
A listing helps create a shortlist; a trial with the team’s real workflow decides whether the tool fits. Use this reading with the structured facts and confirm changes with the vendor.
Workflow fit
The record describes it as a fit for Shopify and Shopify Plus DTC brands that want SMS run as its own dedicated channel, Teams already on Klaviyo, Mailchimp or Omnisend for email who want SMS layered alongside it, Merchants needing popup-driven list growth plus abandoned-cart and welcome automations out of the box. Check that this context matches the volume, roles, and processes your team needs it to support.
Pilot questions
- Can Postscript complete the critical workflow without manual work outside the product?
- Do the recorded connections (Shopify, Klaviyo, Mailchimp, Omnisend) support the sync direction, permissions, and volume we need?
- What user, usage, storage, support, or security limits appear after the headline starting price?
Evidence and freshness
This record was checked on 7/25/2026. That date tells you when the record was reviewed, not that the vendor has left its terms unchanged since then.
Best for
- Shopify and Shopify Plus DTC brands that want SMS run as its own dedicated channel
- Teams already on Klaviyo, Mailchimp or Omnisend for email who want SMS layered alongside it
- Merchants needing popup-driven list growth plus abandoned-cart and welcome automations out of the box
Not a fit if
- Non-Shopify stores or B2B companies — the product is built around the Shopify data model
- Teams that want email and SMS consolidated in one platform and one attribution model
Why it’s listed
- One of the largest dedicated SMS platforms in the Shopify ecosystem, with 1,100+ Shopify App Store reviews
- SMS-specialist alternative to all-in-one email+SMS suites, with 79 partner integrations
- Publishes per-message and platform pricing across four tiers rather than quote-only
Pricing
Starter
$49 per month minimum spendNo platform fee with a $49 monthly minimum spend; $0.009/SMS and $0.045/MMS plus carrier fees.
- Campaigns and automations
- Unlimited segments
- Dedicated toll-free number
- 2 opt-in keywords
- $0.009/SMS, $0.045/MMS + carrier fees
Growth
$100 per month$100/mo platform fee with lower per-message rates and human support channels.
- Everything in Starter
- Unlimited opt-in keywords
- Live chat and email support
- $0.008/SMS, $0.03/MMS + carrier fees
- 30-day free trial
Professional
$500 per month$500/mo tier that unlocks API access and removes Postscript branding.
- Everything in Growth
- Enhanced analytics
- Priority support
- API access
- Removes 'Powered by Postscript' branding
- $0.007/SMS, $0.024/MMS + carrier fees
Enterprise
Custom pricingContact-sales pricing for high-volume brands with dedicated onboarding.
- Dedicated onboarding specialist
- Personalized messages with product recommendations
- Priority support
- Data warehouse push
Features
Integrations
Security & compliance
Pros & cons
Pros
- Fast, low-friction setup — reviewers cite how easy it is to launch campaigns, flows and segments
- Deep native Shopify integration covering checkout, customer accounts and revenue attribution
- Strong ecosystem: 79 named integrations including Gorgias, Zendesk, Klaviyo, Recharge and Triple Whale
- Built-in A/B testing, popup builder and unlimited segmentation even on lower tiers
Cons
- Pricing transparency is the most common complaint — carrier fees and minimum spend land on top of the platform fee
- Total cost climbs quickly for growing senders; Capterra reviewers flag it as expensive at scale
- Contract renewal and cancellation terms are reported as unclear inside the product
- Intermittent Shopify sync issues and, in recent reviews, heavier reliance on AI-first support
What we found
Capterra and Shopify App Store reviewers praise how quickly campaigns, flows and segments can be built plus the depth of the Shopify integration. Recurring complaints centre on cost — pricing transparency, carrier and minimum-spend charges, contract confusion — along with occasional Shopify sync glitches.
Ratings and review counts come from public review platforms. We link to the original source and keep the underlying review text out of this profile.
User reviews
Written by Audyense accounts · moderated before publishing
No user reviews yet.
Used Postscript? Be the first to tell other buyers what actually worked.