Best SMS Marketing Platform for Ecommerce in 2026
Klaviyo is the best SMS marketing platform for ecommerce in 2026. Shopify-driven segmentation, email plus SMS. Postscript best value, Sendlane runner-up.
Disclosure: some links on this page are affiliate links. If you sign up through one, we may earn a commission at no extra cost to you.
Rankings reflect documented features, public pricing as of the "Last Updated" date, and category positioning analysis. We apply a Commercial Gate: only tools we can earn a commission from (now or in the next 12 months) enter the ranking pool. When a non-monetizable tool is the right answer, we name it with a caveat. How rankings work · Editorial policy
Klaviyo
Klaviyo wins for ecommerce SMS in 2026. The behavioural segmentation pulled straight from Shopify and BigCommerce store data is what separates winning SMS programmes from spray-and-pray blasts, and Klaviyo runs SMS and email off the same customer profile so abandoned-cart, post-purchase, and win-back flows fire on real behaviour. Postscript is the best value for Shopify-pure brands that want SMS specialists without the email platform attached. Sendlane is the runner-up for brands that want unified email plus SMS at mid-market pricing. Attentive is the enterprise option most DTC brands do not need yet.
Try KlaviyoAt a Glance
| Feature | Klaviyo | Postscript | Sendlane | SimpleTexting | Attentive |
|---|---|---|---|---|---|
| Price | Free to 250 profiles; SMS billed on top of the email plan | $0 plan fee, $49 monthly minimum, $0.009/SMS | $100/mo at 50,000 emails; SMS from $0.009/credit | From $39/mo (500 credits) | Enterprise (custom, sales-led) |
| Starting Price | - | - | - | - | - |
| Behavioural Segmentation | - | - | - | - | - |
| Email + SMS Unified | - | - | - | - | - |
| Best For | - | - | - | - | - |
Quick Comparison
Our Top Picks
Klaviyo
0The ecommerce SMS plus email default. Behavioural segmentation from Shopify and BigCommerce data drives the highest conversion in the category.
- Behavioural segmentation from native Shopify and BigCommerce data
- SMS and email on one customer profile, channels coordinate automatically
- Strongest revenue attribution in the category
- Free plan for up to 250 active profiles, with $5 of mobile messages a month included
- Pre-built abandoned-cart, post-purchase, and win-back flows
- Ecommerce-specific, overkill for B2B sales SMS
- SMS message costs stack on top of email plan pricing
- Gets expensive fast above 100K contacts
Postscript
The Shopify-native SMS specialist. Best value for brands that want SMS done properly without an email platform attached.
- Shopify-native, cleanest install and event integration
- Per-message pricing from $0.009 per SMS, with a $100 credit for the first 30 days
- First-class TCPA compliance and carrier opt-in handling
- Strong abandoned-cart and back-in-stock automations
- Shopify-only (no BigCommerce or WooCommerce)
- Starter has a $49 monthly minimum spend
- Needs a separate email tool alongside it
- Fewer non-SMS channels than the all-in-one platforms
Sendlane
Unified email plus SMS for mid-market ecommerce. Runner-up for brands wanting both channels in one tool at a flatter price than Klaviyo at scale.
- Unified email plus SMS in one platform
- Flatter pricing than Klaviyo at higher contact counts
- Shopify and WooCommerce behavioural automation
- More hands-on support than the category leaders
- Smaller integration ecosystem than Klaviyo
- Less agency and template community support
- Higher entry price than SMS-only specialists
- SMS is priced separately: from $0.009 a credit including carrier fees
SimpleTexting
The accessible SMB pick. Best for smaller stores and non-Shopify businesses that want broadcast SMS without ecommerce-platform lock-in.
- Flat $39 a month for 500 credits, with extra credits at 5.5 cents each
- Platform-agnostic (not Shopify-locked)
- Strong automation builder for the price
- Keyword opt-in and compliance handled
- Shallower behavioural segmentation than Klaviyo
- Not built around ecommerce store events
- Conversion ceiling lower than the specialists
Attentive
0Caveat: the enterprise SMS standard. Sales-led pricing and onboarding make it overkill for brands under roughly $20M revenue.
- Best-in-class list-growth and opt-in tooling
- Enterprise-grade deliverability and carrier relationships
- Strong managed-service support for large programmes
- Sales-led custom pricing, no self-serve
- Overkill below roughly $20M revenue
- Managed onboarding rather than same-day start
How This Was Tested
Rankings reflect documented features and public pricing as of June 2026. Performance and quality judgements are editorial opinion based on vendor documentation, not measured results or independent benchmarks. Postscript, SimpleTexting and Sendlane details and the Klaviyo free plan were read from vendor pricing pages in October 2026; Klaviyo paid pricing and Sendlane email plan prices were not. No vendor sponsored placement.
Frequently Asked Questions
Klaviyo is the best ecommerce SMS platform in 2026 for most stores. It segments SMS sends on real behaviour pulled from Shopify or BigCommerce data, runs SMS and email off one customer profile so the channels coordinate, and has the strongest revenue attribution in the category. It is free to 250 active profiles, with $5 of mobile messages a month on the free plan and SMS billed on top of the email plan on paid tiers.
Klaviyo if you want email and SMS in one platform with the deepest behavioural segmentation, or if you are not already committed to a separate email tool. Postscript if you want a Shopify-native SMS specialist at usage-based pricing without paying for a bundled email plan, and you are happy with your existing email tool. Both are excellent on Shopify; the decision is whether you want one platform for both channels or a best-of-breed SMS specialist. For a full feature-by-feature breakdown, see our dedicated Klaviyo vs Postscript comparison.
Ecommerce SMS is behavioural and broadcast: automated flows triggered by store events (abandoned cart, post-purchase, back-in-stock) plus promotional campaigns to opted-in subscribers, optimised for revenue per send. Sales SMS is conversational and one-to-one: a rep texting a prospect through a deal, synced to the CRM. Klaviyo and Postscript win the ecommerce use case; a tool like Salesmsg wins the sales use case. They are different products despite both being called SMS marketing.
Ecommerce SMS cost has three parts: a platform fee, a per-message rate and carrier fees. Postscript charges $0.009 per SMS and $0.045 per MMS on Starter (with a $49 monthly minimum spend), $0.008 and $0.03 on Growth at $100 a month, and $0.007 and $0.024 on Professional at $500 a month, plus carrier fees. SimpleTexting is $39 a month for 500 credits, with extra credits at 5.5 cents each. A store sending 50,000 SMS a month on Postscript Growth pays about $400 in message fees plus the $100 plan fee, before carrier fees. Klaviyo bills SMS on top of the email plan and includes $5 of mobile messages a month on its free plan.
Yes for US sending. TCPA requires explicit opt-in consent before marketing texts, with clear opt-out handling and quiet-hours rules. Klaviyo, Postscript, Sendlane, and SimpleTexting all handle consent capture, carrier-approved opt-in flows, and automatic opt-out processing. The compliance tooling is a real differentiator: Postscript in particular treats it as first-class because SMS is its entire product.
Yes, and for ecommerce it is usually the better choice. Klaviyo and Sendlane run both channels off one customer profile, which means a discount is not double-sent across email and SMS and a subscriber who converts on one channel is suppressed on the other. Postscript is SMS-only by design, so pairing it with a separate email tool is the trade-off for its specialist depth and usage-based pricing.
For a small Shopify store, Postscript is usually the best SMS marketing software because pricing is per message (from $0.009 per SMS, with a $49 monthly minimum spend on Starter), the install is Shopify-native, and compliance is handled out of the box. If you also want email in the same tool, Klaviyo is the better pick because its free plan covers your first 250 active profiles and includes $5 of mobile messages a month. SimpleTexting is the option for a small store not on Shopify. Match the tool to whether you want SMS-only or email plus SMS.