Postscript vs Klaviyo
A side-by-side comparison for e-commerce sellers — platforms, pricing, free trials and ROI.
| Category | Email & SMS | Email & SMS |
|---|---|---|
| Platforms | Shopify DTC | Shopify WooCommerce DTC |
| Pricing | Free trial; usage-based, paid plans from $100/mo | Free up to 250 contacts; paid from $20/mo |
| Free trial | Yes | Yes |
| Affiliate program | Direct | Direct |
| ROI | Turns SMS into a measurable revenue channel, with top brands earning a strong multiple on every dollar of texting spend. | Automated flows like abandoned cart and welcome series typically drive 30-40% of total email revenue on autopilot. |
Which should you choose?
Postscript
Shopify and Shopify Plus DTC brands that want SMS as a dedicated, high-converting revenue channel.
Klaviyo
DTC and Shopify/WooCommerce brands that treat email and SMS as a primary, data-driven retention channel.
Postscript
Pros
- Deeply integrated with Shopify and Shopify Plus data
- Strong compliance and deliverability for US texting
- Conversational selling features drive measurable replies and revenue
Cons
- Shopify-only, so not an option for WooCommerce or Amazon sellers
- Usage-based pricing plus message costs add up at scale
- SMS-focused, so you still need a separate email tool
Klaviyo
Pros
- Most powerful ecommerce data and segmentation engine on the market
- Excellent revenue attribution shows exactly what each email earns
- Vast library of integrations and benchmark data for ecommerce
Cons
- Per-contact pricing gets expensive fast as your list grows
- Feature depth creates a learning curve for beginners
- SMS is billed separately and adds meaningfully to the bill
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Automated abandoned-cart and promo texts recover lost sales with high open rates and strong return on texting spend.
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Free to install; usage-based pay-as-you-go
Free trial
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Free trial; paid from $100/mo
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Managed SMS marketing for Shopify with AI-optimized flows
Done-for-you SMS flows and opt-in popups grow subscriber lists and recover carts, turning texting into a measurable revenue line.
🛍️ Shopify🚀 DTC / Own Store
Free trial; managed plans (revenue-focused) typically from ~$299/mo
Free trial
Affiliate