Best SMS Marketing Apps for Shopify in 2026

The Best SMS Marketing App for Shopify: Quick Answer

Klaviyo is the best SMS marketing app for most Shopify stores in 2026, because SMS and email share one customer profile, one set of flows and one revenue report. Postscript is the strongest SMS-only app for US-focused brands, Attentive suits enterprise brands where SMS is a primary channel, and Shopify Messaging is now a credible free-to-install option for smaller stores that want texts inside the Shopify admin.

The right choice depends less on feature lists and more on three things: where your email already lives, where your customers are (UK SMS messages cost several times more to send than US messages), and whether you need two-way AI conversations or simple automated flows.

Best Shopify SMS Marketing Apps Compared

Pricing, ratings and reviews were checked against each app's Shopify App Store listing and pricing page in September 2026. Most SMS marketing apps bill per message on top of any plan fee, so the plan pricing is only part of the cost of sending messages to customers.

10 Best SMS Marketing Apps for Shopify (2026)

Charle builds and supports Klaviyo SMS marketing programs for Shopify brands, and we review the wider SMS market every time a client asks whether a specialist tool would earn more revenue. These are our picks, with the trade-offs we would want to know before signing up.

1. Klaviyo: best overall

• Price: Free plan (250 profiles, 150 SMS credits); SMS plans from around $15/month
• Best for: Shopify stores that want email and SMS on one customer profile

Klaviyo's Shopify integration syncs more than 200 data points in real time, including browsing, cart activity, purchase history and predicted lifetime value. Every SMS campaign, template and flow can use the same customer data, segments and analytics as your email, so a cart recovery flow can send an email first, then SMS messages two hours later only to customers who did not open it.

The trade-offs are cost and complexity. Profile-based billing, introduced in 2025, means bills climb as your list grows, and SMS credits do not roll over. K:AI, Klaviyo's AI layer, now drafts SMS marketing messages and picks send times for personalization at scale, and WhatsApp messaging is available in the same flow builder. If your email already runs on Klaviyo, adding SMS here is almost always the right call. Our Klaviyo flows guide covers the build.

2. Postscript: best SMS-only app

• Price: Starter $0 with a $49 monthly minimum (about $0.009 per US SMS); Growth $100; Professional $500
• Best for: US-focused Shopify brands that want a dedicated SMS team and tooling

Postscript is built only for Shopify SMS, and it shows in the detail: native segments on Shopify customer tags and purchases, keyword and checkout opt-ins, quiet hours and consent tracking by default, plus responsive support. Its AI agent, Shopper, answers customer messages and recommends products in the thread, and Infinity Testing rotates message variants automatically to lift engagement. Reviews on the App Store praise its support team.

The catch for UK merchants is that Postscript is designed around US carriers and TCPA rules. It is strongest when most of your customers are in the US.

3. Attentive: best for enterprise

• Price: Custom quote, usually an annual contract
• Best for: Large brands where SMS is a primary revenue channel

Attentive's two-tap sign-up units are still the benchmark for mobile list growth, and its 2026 relaunch leans hard into agentic AI that picks the message, timing and offer per subscriber. Two-way conversations, journeys triggered by Shopify orders and events, deep segmentation and dedicated account support are all included. It was also a named migration partner when Yotpo closed its SMS product. For most stores under $10M revenue it is more platform than the business needs.

4. Shopify Messaging: best free-to-install option

• Price: Free to install; SMS about $0.06 per UK message and $0.012 per US message; 10,000 emails a month free
• Best for: Smaller stores that want texts inside the Shopify admin

Shopify Messaging, previously Shopify Email, now sends SMS and WhatsApp as well as email, with published per-country pricing for SMS messages in the Shopify Help Center. It uses Shopify Flow and Forms, includes ready-made templates, and Sidekick can draft SMS campaigns and promotions. Segmentation, reporting and support are basic next to Klaviyo, and it has fewer features than Mailchimp or Omnisend for campaigns, but for a store sending a few thousand messages a month there is no platform fee to justify.

5. Omnisend: best value email and SMS

• Price: SMS on the Pro plan ($59/month), pay as you go per message
• Best for: Stores that want pre-built email and SMS automations without Klaviyo's price

Omnisend's pre-built automations mix email and SMS steps for welcome, cart recovery, order confirmation and shipping updates. Note the 2026 change: since May 2026, new accounts only get SMS on Pro, so the old "60 free SMS credits" advice no longer applies. Omnisend's own 2025 data shows automated texts earned $0.74 per send against $0.15 for SMS campaigns, and there is a free trial of Pro.

6. TxtCart: best AI cart recovery

• Price: Starter $29/month (about $0.009 per SMS) up to Managed $999/month
• Best for: Stores whose main SMS job is recovering abandoned carts

TxtCart runs two-way conversations with customers who abandon checkout: its AI answers product, sizing and delivery questions and can offer a discount within your rules, which lifts cart recovery sales. It also includes popups, campaigns and flows. The pricing moved from pay-per-conversion to plans in 2025, with a 14-day free trial, so check the current plan against your volume.

7. Recart: best managed service

• Price: From $299/month on the App Store, plus per-message costs
• Best for: Brands without the time or staff to run SMS

Recart assigns a strategist who writes copy, builds flows and runs campaigns for you. Its two-tap popups convert at 8 to 12% on Recart's own figures. You pay for the service and support element, so it makes sense once SMS marketing revenue can cover the fee.

8. Privy: best for list growth

• Price: Free up to 100 contacts; Email + SMS from $45/month with 1,250 credits
• Best for: Smaller stores that need popups first and simple SMS second

Privy's popups, spin-to-win wheels and exit-intent forms capture email addresses and phone numbers from customers in one step. Privy bought Emotive in 2025 and Sendlane in early 2026, so expect its SMS features to deepen.

9. Brevo PushOwl: best for push plus SMS

• Price: Free plan; Plus $19/month; Power $79/month
• Best for: Stores that want web push, email and SMS from one app

PushOwl, now part of Brevo, started as a web push specialist. One-click push notifications need no phone number, which makes it a cheap way to reach shoppers you cannot yet text, with SMS layered on for your highest-intent segments. Reviews rate it among the easiest apps to set up.

10. Sendlane: best for data-heavy automation

• Price: From $100/month; SMS around $0.009 per credit in the US
• Best for: Established brands that want real-time event triggers

Sendlane triggers SMS messages from live behavior, such as a shopper viewing the same product three times, and segments customer data across email, SMS, purchases and site activity. It also offers an API for custom events. It is now owned by Privy.

What Changed in Shopify SMS Apps in 2026

Several lists that still rank for this search recommend apps that no longer exist. Before you choose, know what has moved:

• Yotpo SMS (formerly SMSBump) has closed. Yotpo shut its email and SMS product on 31 December 2025 and pointed customers to Attentive and Omnisend.
• Omnisend moved SMS to Pro only for new accounts from May 2026.
• Privy now owns Emotive and Sendlane.
• Shopify Messaging sends SMS and WhatsApp with published per-country pricing.
• AI agents are standard. Postscript Shopper, Klaviyo K:AI, Attentive and TxtCart all answer replies automatically, and RCS rich messaging is arriving on several platforms.

What SMS Really Costs a Shopify Store

Plan prices hide most of the bill. Shopify Messaging lists about $0.012 per US SMS, $0.025 in Canada and $0.06 in the UK, and other platforms apply similar country multipliers, so international lists cost far more to text. On top of per-message pricing, watch for platform fees, monthly minimums, profile-based billing, carrier fees, 10DLC or toll-free number fees ($2.15 a month on Shopify Messaging) and charges for confirmation or double opt-in texts. These hidden costs affect performance comparisons between channels more than headline prices.

A worked example: 10,000 US SMS marketing messages a month through Shopify Messaging costs roughly $120 before number fees, while a dedicated SMS platform with a $100 plan and per-message pricing lands closer to $200. That is cheap enough to test campaigns, but automated flows still earn far more per send than blanket discounts and promotions to every customer on the list.

How to Choose the Right SMS App for Your Store

Start from your current stack and stage rather than a feature list:

• Already on Klaviyo for email: add Klaviyo SMS. Shared profiles and flows beat any specialist's extra features for most brands.
• Under about $1M revenue and on Shopify Email: Shopify Messaging or Omnisend keeps costs low while you test the channel.
• US-heavy customer base, SMS as a core channel: Postscript, or Attentive at enterprise scale.
• Cart recovery is the only job: TxtCart's two-way AI.
• No team to run it: Recart's managed service.
• List growth is the bottleneck: Privy's popups.

Whichever you pick, check five features: a native Shopify integration with real-time customer data sync (not a Zapier bridge), cart recovery and browse flows, popups and checkout opt-ins, consent and opt-out handling, and revenue attribution with a clear conversion window. Read recent reviews too: good support during setup matters more than most feature lists suggest. Klaviyo's default SMS attribution window is five days, so compare apps on the same window before trusting their ROI claims.

SMS Compliance for US Shopify Stores

US marketing texts fall under the Telephone Consumer Protection Act (TCPA), CTIA guidelines and a growing number of state "mini-TCPA" laws. In practice:

• Collect express written consent for marketing texts, with clear disclosure of message frequency and "Msg & data rates may apply".
• Include an opt-out, such as "Reply STOP", in every marketing message and honor it instantly.
• Register your sending number: 10DLC for local numbers or verification for toll-free numbers.
• Respect quiet hours, typically 8am to 9pm in the recipient's time zone.
• Keep consent records; TCPA fines run from $500 to $1,500 per message.

Order confirmations and delivery updates are transactional, but offers and recommendations need marketing consent. If you text UK customers, PECR and UK GDPR apply instead.

SMS Flows That Earn Their Cost

Automated flows outperform campaigns on revenue per message on every platform we track, because they reach customers at the moment of intent. Build these automations first:

• Abandoned cart: first text one to two hours after abandonment, a second at around 24 hours for high-value carts. This cart recovery flow usually drives the largest share of SMS marketing revenue. See our guide to reducing cart abandonment.
• Welcome: deliver the sign-up offer immediately, then one follow-up with best sellers.
• Back in stock: the customer has already shown intent in the product, so sales conversion rates are high.
• Post-purchase: a delivery-day cross-sell of related products and a review request, which supports retention and repeat orders.
• Winback: a single text at 60 to 90 days since the last order.

Keep SMS campaigns to two to four a month as part of a wider channel strategy, write messages under 160 characters (70 once you add an emoji), and use email for longer content. For copy ideas, read our SMS marketing tips.

Why We'd Pick the SMS App Your Email Already Lives In

Our view is simple: for most Shopify brands, the best SMS marketing app is the one attached to your email platform, and for the brands we work with that means Klaviyo. A specialist SMS app wins features on paper, but it splits your customer data, your revenue attribution and your flow logic across two tools, and someone has to keep them in sync.

Cheap US per-message rates make it tempting to send weekly broadcast messages, but list fatigue and opt-outs cost more than the texts themselves. When we add SMS to a client's Klaviyo account, we build the abandoned cart, back-in-stock and welcome flows first, suppress anyone who opened the matching email, and only add SMS campaigns once those flows show revenue in the analytics and attribution report. We would move a brand to Postscript or Attentive once SMS is carrying a meaningful share of revenue and needs its own team and tooling. If you want help setting that up, talk to our Klaviyo agency team.