Postscript

postscript.io
Marketing Automation
Weekend Project

SMS Marketing and Sales for Shopify Brands

How to Replace Postscript

Overview

Postscript is an AI-powered SMS marketing platform built specifically for Shopify brands that transforms SMS strategy to drive higher ROI on every message. It combines conversational AI technology with ecommerce expertise to turn SMS into a top revenue-generating channel. The platform helps brands grow subscriber lists faster, send optimized campaigns and automations, and engage customers through two-way messaging.

Features

47 features across 19 categories

AI(3)

Brand CenterAIPremium

Train AI models with your brand voice preferences, manage knowledge base, offers, and product catalogue

Infinity TestingAIPremium

Test hundreds of on-brand message variants in a fraction of the time using AI technology to optimize campaigns and automations

ShopperAIPremium

Always-on 1:1 shopping assistant that answers customer questions and drives sales through meaningful SMS engagement

Also in: monday.com, Notion, Airtable

Analytics(2)

Attribution Windows

Customize click and view attribution windows from default 7-day and 24-hour settings

Global UTM Parameters

Choose global UTM parameters for campaigns and automations with custom parameter insertion

Also in: Hugging Face, Notion, Smartsheet

Automation(2)

Automation Triggers

Select from 65+ automation trigger events including keyword replies, checkout started, order created, product views, Recharge events, low inventory, and price drop triggers

Automations Powered by AIAIPremium

Automatically send messages based on triggers with AI that predicts behavior and generates 20% revenue lift through testing and optimization

Also in: monday.com, Notion, Airtable

Branding(2)

Custom Contact Card

Create branded contact card with logo, contact name, URL, email, address, and special notes

Short Link Subdomain

Customize the subdomain of short links appearing in SMS texts

Also in: Lightspeed POS, Lessonly, Setmore

Campaign Management(2)

Campaigns Powered by AIAIPremium

Build campaigns with AI-powered message optimization for flash sales, promotions, and interactive flows

Flow Builder

Drag-and-drop interface to build and manage SMS campaigns and automations with conditional logic and in-flow analytics

Compliance(4)

Carrier Network Relationships

Direct relationships with carrier networks for compliance updates and rate negotiation

Compliance Features

Built-in compliance safeguards hard-wired to follow TCPA, mobile carrier, and regulatory guidelines

In-House Legal Team

Team of in-house compliance and legal experts protecting merchants from costly lawsuits

TCPA Defense Force Partnership

Partnership to track industry regulations and help answer compliance-related questions

Also in: Insider CDP, Airtable, 1Password

Customer Communication(1)

ResponsesAI

Manage incoming subscriber texts with machine learning-powered filtering and prioritization by sentiment or topic

Infrastructure(3)

Dedicated Toll-Free Number

Free verified toll-free number assigned to each merchant for SMS sending

Designated Short CodePremium

Premium option for high-volume senders offering faster and more consistent delivery speeds at $750/month

Message Throughput & Deliverability

Pre-paid maximum throughput bandwidth with infrastructure redundancies and Twilio partnership for 3x bandwidth

Integration(3)

API AccessPremium

Access to Postscript API for custom integrations and advanced use cases

Integrations

Sync with help desk, email marketing providers, popup builders, review platforms, and more

Software Development Kit (SDK)Premium

SDK for non-Shopify merchants to add desktop/mobile popups, checkout opt-in, and TCPA-compliant language

List Growth(7)

Back in Stock Automation

Acquire high-intent subscribers by allowing shoppers to sign up for SMS notifications when out-of-stock items are restocked

Checkout Collection

Collect SMS subscribers on checkout pages including Shopify, Shopify Plus, Recharge, Carthook, and custom checkouts

Desktop & Mobile Popups

Collect phone numbers and emails on website with customizable design, incentives, and display timing options

Keywords

Create text-to-join keywords to share across marketing channels and track opt-ins and revenue from different sources

Landing Page & Opt-in Form

Create standalone landing pages with SMS opt-in forms linkable from email, social media, and other channels

Onsite Opt-in

Improve acquisition rates while keeping visitors on site with on-page opt-in functionality

QR Codes

Create unique QR codes for product packaging and physical locations to convert in-person touchpoints into SMS subscribers

List Management(2)

List Hygiene Management

Platform features and practices to promote healthy subscriber lists and positive carrier relations

List Upload & Migration

Import compliant subscriber lists from other platforms with Compliance Team review

Managed Services(1)

Postscript PlusAIPremium

Managed marketing service combining AI-powered platform with expert strategists for leading ecommerce brands and agencies

Onboarding(1)

Free Trial

$100 credit for first 30 days to test campaigns, automations, keywords, segments, and integrations

Pricing(2)

No Failed Message Charges

Platform does not charge merchants for messages that fail to deliver

No Incoming Message Charges

Platform does not charge for incoming messages from subscribers beyond carrier fees

Promotions(3)

CashBackPremium

Replace traditional coupons with more profitable CashBack offers to boost margins and drive retention

Custom Coupons

Define minimum spend requirements, eligible products, start/end dates, and usage limits per customer

Fondue CashBackPremium

Add-on tool for CashBack management with A/B testing capabilities to scale promotions with confidence

Reporting(1)

Analytics

SMS-first analytics dashboard to visualize data, identify actionable insights, and refine messaging strategy

Sales Support(1)

SMS SalesAIPremium

Team of expertly-trained SMS sales associates powered by AI software to proactively engage subscribers

Segmentation(2)

Segments

Fine-tune subscriber segments using 45+ segmentation filters including Shopify data, SMS activity, integrations, area codes, and more

Triggers & User Filters

Tailor messaging with 85+ trigger filters and 45+ user filters for order-specific and subscriber-specific personalization

Support(5)

Dedicated Customer Success ManagerPremium

Dedicated support available for Professional and Enterprise plans to fine-tune strategy and conduct account reviews

Email Support

Email support via support@postscript.io for troubleshooting and strategy guidance

Help Center

Comprehensive, always-available self-learning resource with step-by-step guides and video tutorials

Live Chat Support

Real-time chat support Monday-Friday, 9:00 AM-8:00 PM Eastern with Customer Experience Advocates

Onboarding SupportPremium

Work with Onboarding Specialist to set up first campaigns, automations, list growth, and integrations

Pricing

Starter

$0/mo base + $49 minimum spend
  • Campaigns and automations
  • Unlimited segments
  • Dedicated toll-free number
  • Subscriber acquisition tools
  • 2 opt-in keywords
  • Branded short link subdomain

Growth

$100/mo
  • Campaigns and automations
  • Unlimited segments
  • Dedicated toll-free number
  • Subscriber acquisition tools
  • Unlimited opt-in keywords
  • Branded short link subdomain
  • Live chat and email support

Professional

Popular
$500/mo
  • All Growth features
  • Enhanced analytics
  • Priority live chat/email support
  • API access for custom integrations
  • Remove 'Powered by Postscript' from opt-in

Enterprise

Contact Sales
  • All Professional features
  • Custom onboarding
  • Launch specialist
  • Personalized messages with custom product recommendations
  • Priority live chat support
  • Data warehouse access

Cost Calculator

Keep Paying Postscript

Monthly$49/mo
Yearly$588/yr
5-Year Total$2.9k

Build It Yourself

Est. Build Time~4 hrs
Hosting$20/mo
DifficultyVery Easy

Total Cost Comparison

1 YearSave $348
SaaS
$588
DIY
$240
3 YearsSave $1k
SaaS
$1.8k
DIY
$720
5 YearsSave $1.7k
SaaS
$2.9k
DIY
$1.2k

DIY hosting estimate based on Vercel + Supabase free/pro tiers (~$20/mo). Build time estimated from 47 features at very easy complexity.

Build vs Buy

Should you build a Postscript alternative or buy the subscription? Estimate based on 47 features.

Buy Postscript

Better Value
Monthly cost$490/mo
3-year total$17,640
Time to deployDays

Build Your Own

Development cost$24,000
Maintenance$360/mo
3-year total$36,960
Dev time~2 months

Buying Postscript saves ~$19,320 over 3 years vs building.

Estimates based on 47 features and a BuildScore of 5/5. Actual costs vary.

Integrations

8 known integrations