Best Shopify SMS platforms at a glance
| Platform | Best For | Starting Price | Main Tradeoff |
|---|---|---|---|
| Postscript | Best dedicated Shopify SMS platform | ~$100/mo | SMS-only focus |
| Attentive | Mid-market and enterprise | Custom pricing | Expensive for smaller stores |
| Klaviyo SMS | Email + SMS in one stack | Add-on pricing | Can get expensive combined |
| Omnisend | Budget email + SMS combo | $16/mo base with bundled credits | Less best-in-class on SMS depth |
What makes Shopify SMS marketing work?
Good Shopify SMS marketing is not just sending more campaigns. It is about collecting clean consent, using strong triggers, and respecting the fact that SMS is more intimate than email. A few high-value flows beat constant blasting every time.
- Welcome discount flow
- Abandoned checkout reminder
- Back-in-stock or low-inventory alerts
- Post-purchase cross-sell or reorder prompts
- VIP or early-access drops
Compliance is not optional
SMS has huge upside because people actually see the messages. That is also why carriers and regulators care so much about abuse. If your platform makes consent tracking, keyword handling, and opt-out management messy, it is the wrong platform.
When to use Postscript vs Klaviyo SMS
Use Postscript if SMS is a major channel and Shopify is the center of your stack. Use Klaviyo SMS if operational simplicity matters more and you want email plus SMS orchestrated in one place.
Final take
Most Shopify brands should start with a small number of high-intent SMS automations and earn the right to scale volume. Postscript is the specialist. Klaviyo SMS is the unified-stack play. Attentive is the big-brand option.
Frequently asked questions
Postscript is the best dedicated SMS platform for most Shopify brands because it is purpose-built for Shopify and strong on both compliance and activation. Attentive is stronger for larger brands that want a managed-service approach.
Yes, when it is consent-based and used carefully. SMS often produces higher open rates and faster action than email, but it is unforgiving if the messages are poorly targeted.
Costs range from low hundreds per month for smaller setups to much higher for larger brands with significant subscriber bases and message volume. The platform plus message usage both matter.