Postscript
SMS marketing platform purpose-built for Shopify stores.
Alternatives · 2026
Conversational SMS and email marketing for consumer brands.
3 hand-curated alternatives from MintedSaaS's directory. See the Attentive listing →
Attentive is a conversational SMS and email platform built for ecommerce and DTC brands. It focuses on texting workflows—cart recovery, post-purchase sequences, and real-time customer conversations—alongside email campaigns. The product targets mid-market retailers who want to coordinate messaging across SMS and email without switching between separate tools. Attentive sits between dedicated SMS platforms like Twilio and full-stack marketing clouds like Klaviyo, emphasizing speed of implementation and conversation-first design.
Brands typically use Attentive to boost SMS revenue through high-engagement campaigns. The product suits companies with existing customer bases who want to add SMS as a higher-ROI channel. Buyers often choose it when they need pre-built templates for common DTC sequences, API access for custom integrations, and detailed SMS deliverability reporting. Most customers have between $5 million and $100 million in annual revenue and rely heavily on customer data already stored in their ecommerce platform or CDP.
SMS marketing platform purpose-built for Shopify stores.
Email and SMS marketing platform focused on ecommerce.
Behavioural messaging across email, SMS, push, and in-app.
Postscript, Klaviyo, and Customer.io all support SMS and email workflows. Postscript is built specifically for SMS-first brands and offers lower per-contact pricing. Klaviyo provides broader segmentation and predictive analytics but charges higher per-contact fees. Customer.io focuses on lifecycle automation and works well for companies already invested in data warehouses.
Most SMS and email platforms require payment once you exceed free-tier volume limits. Customer.io offers a free tier up to 10,000 contacts. Postscript and Klaviyo charge based on your subscriber count, with no truly free option, though Postscript's pricing is lower per contact than Attentive for SMS-heavy brands.
Prioritize platforms that integrate directly with your ecommerce system, offer pre-built recovery templates, and provide SMS delivery analytics. Compare per-contact pricing against your subscriber count, and verify that the platform supports two-way SMS conversations if customer engagement is a priority.
Attentive, Postscript, Klaviyo, and Customer.io all offer both SMS and email. Postscript and Attentive lean SMS-first. Klaviyo emphasizes email with SMS as an add-on channel. Customer.io is designed around automation workflows that can span SMS, email, and in-app messages simultaneously.
SMS generates higher engagement rates and immediate revenue from abandoned cart and promotional campaigns—typically 20-40% click rates versus 2-5% for email. However, SMS has strict regulatory rules and smaller message capacity, so email remains better for longer-form storytelling and list building.
A single platform like Postscript, Klaviyo, or Customer.io can handle both SMS and email in one interface. This simplifies campaign coordination, unified reporting, and audience targeting. Some companies still use separate tools if they need highly specialized SMS capabilities or have legacy integrations that don't overlap.
Direct connections to Shopify, WooCommerce, or your ecommerce platform are essential for automated triggers. API access for custom integrations, webhooks for real-time data, and connections to analytics tools or CDPs let you tie SMS campaigns to broader business logic.
Yes. SaaS companies use SMS for onboarding and account alerts. Nonprofits use it for donor engagement. Appointment-based businesses use it for reminders. The difference is that ecommerce-focused platforms like Attentive and Postscript include recovery templates you won't need, but other platforms like Customer.io work equally well for lifecycle workflows outside retail.