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Best Transactional SMS Apps Shopify apps in 2026 [Updated]
PickYourApp Review Team
6 min read
•
Jun 02, 2026
The best Shopify transactional SMS apps help merchants connect with customers through automated text messages, order notifications, and cart recovery campaigns. From COD order verification and WhatsApp integration to comprehensive SMS marketing solutions, these tools enable direct mobile communication for order updates, abandoned cart reminders, and promotional messages. Whether you need simple order notifications or full-featured SMS automation, these apps provide essential features to keep customers informed and engaged throughout their shopping journey.
| Name | Rate on Shopify | Price | Free trial | Key features |
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#1. Reduce RTO/RTS, Verify COD via OTP, Offer split payments upfront, add fees or convert COD to prepaid
COD King helps you reduce RTO/RTS costs and eliminate fake COD orders through OTP verification via SMS or WhatsApp. Verify customer intent and secure commitment by collecting partial payments, upfront payments, or deposits to filter out unserious buyers and joy reservers. Add COD fees to encourage prepaid conversions, or offer prepaid discounts to convert COD orders to prepaid. Show or hide COD at checkout based on location, order value, or specific products. Send automated SMS and WhatsApp notifications to keep customers informed. Stop losing money on failed deliveries and returns. Secure split payments, reduce RTO costs, and maximize profit with smart checkout optimization that turns every order into a confirmed sale. -
#2. AI marketing and customer service automation for email marketing, SMS, and WhatsApp to grow faster.
Klaviyo is an AI-first B2C CRM that syncs your Shopify data in real-time, so every email, SMS, and WhatsApp message reflects what's happening in your store right now. Over 117,000 brands use Klaviyo to create personalized marketing campaigns that turn browsers into buyers. The platform unifies data from 350+ integrations and uses AI Agents to automate workflows and build on-brand campaigns. Marketing Agent reads your site and creates launch-ready content, while smart segmentation uses historical and real-time data to target the right customers. Drive conversions with email marketing, SMS, WhatsApp messages, mobile push notifications, and pop-ups. Customer Hub and Customer Agent turn service moments into shopping opportunities, helping you grow faster with automated, personalized customer experiences across every touchpoint. -
#3. WhatsApp button for chat support, order confirmation, verify COD, abandoned cart, API Integration
WhatsApp Chat + Marketing brings together chat support, order management, and marketing automation in one widget. The app lets you add a WhatsApp chat button to your store for customer support with multiple agents, FAQs, order tracking, and contact forms. Send automated messages for abandoned checkout recovery, order confirmation, COD verification, order fulfillment, and review requests using your own WhatsApp number. The mobile app helps you recover abandoned carts manually when needed. Connect the official WhatsApp API for advanced marketing features including broadcast campaigns, custom templates, promotions, shared inbox, and real-time chat support. Set up online hours and manage multiple agents through the chat button. Perfect for stores looking to improve customer communication and recover lost sales through WhatsApp automation. -
#4. Boost sales with omni-channel marketing via WhatsApp, SMS, and Web Push campaigns & automations
Reach more customers through an integrated marketing platform combining WhatsApp, SMS, and Web Push notifications. Build your subscriber base and run targeted campaigns across multiple channels to increase sales. Automatically recover lost revenue with smart cart and checkout abandonment messages, while driving additional sales through back-in-stock and price drop alerts. The intelligent channel optimization ensures your messages reach subscribers through their preferred communication method without duplicate sending. Create custom signup forms, design engaging campaigns, and automate key customer communications - all from one central dashboard. -
#5. All-in-One App: Email & SMS Marketing, Automations, Popups, Reviews, Smart Widgets, and AI Design.
Sendvio replaces multiple apps with one complete solution for Shopify merchants looking to increase conversions and grow repeat purchases. This all-in-one platform combines email marketing, SMS marketing, popups, WhatsApp widgets, product reviews, and automations in a single app. Set up abandoned cart recovery, welcome series, back in stock alerts, and transactional emails in minutes using ready-made workflows. The AI Design Assistant helps you create professional campaigns quickly, while the extensive template library gets you started faster. Add product review carousels and star ratings to build store credibility. Everything works through deliverability-focused infrastructure with no coding required. Perfect for raising average order value and re-engaging dormant customers through automated email and SMS campaigns. -
#6. Use Cash on Delivery - COD Verification app to reduce RTO. Charge a fee for Cash on Delivery Orders.
Cash on Delivery (COD) payment helps grow e-commerce sales but often leads to costly returns and fake orders. This COD verification app helps reduce return-to-origin (RTO) rates by confirming orders before shipping. The app sends verification OTPs through SMS or WhatsApp, with IVR calling as backup when messages fail. You can also set up COD fees to offset handling costs. The verification process filters out fraudulent orders and helps analyze ordering patterns, protecting your business from losses due to bogus COD orders. Make your COD operations more secure and profitable with simple order verification steps. -
#7. Send targeted SMS campaigns and automate customer messaging to increase sales and engagement rates
YSMS helps you run effective SMS marketing campaigns with smart automation features. Send targeted messages based on customer behavior and shopping data to increase engagement. Automatically recover abandoned carts, notify customers when items are back in stock, and keep them updated on their orders. Track your SMS campaign success with detailed analytics showing clicks, conversions, and return on investment. The app includes ready-to-use templates and supports multiple languages, making it simple to start messaging customers right away. Set up automated flows for welcome messages, birthday offers, and customer win-back campaigns. The pay-as-you-go pricing ensures you only pay for messages you actually send. With Shopify Flow integration, you can easily connect SMS marketing to your existing store operations. -
#8. All in one COD & Checkout - higher COD to prepaid conversions, address prefill and RTO intelligence
Cashfree CODFirm helps you win more conversions while reducing COD risks and cart abandonment. Control cash on delivery orders with OTP verification at checkout to log customer intent. Block COD based on pincodes, products, order value, or high RTO customers. Convert COD orders to prepaid with prepaid-first offers and COD fees. The app includes RTO intelligence to identify and block risky orders before they ship. Send automated Whatsapp alerts for order confirmation, shipping updates, out for delivery, and delivery notifications. Optimize your checkout process, lower RTO rates, and drive prepaid conversions to grow your business with less risk. -
#9. SMSGo is an all-in-one SMS Marketing, Order notifications, Cart recovery & SMS Bump app.
Recover lost sales with targeted SMS alerts for abandoned shopping carts. Send automated cart recovery messages at scheduled times, complete with personalized discount codes and special deals. Set up multiple SMS notifications through the Abandonment Protector system to bring customers back to checkout. Create automated post-purchase sequences to encourage repeat sales, and build customer relationships through direct SMS communication. Implement customer winback campaigns with targeted coupon codes, while tracking cart recovery performance. Use your own domain for cart recovery links and customize sender IDs for a professional touch. Perfect for stores looking to reduce cart abandonment and increase sales through SMS marketing. -
#10. SMS marketing: text marketing campaigns, automations to win-back customers, abandoned cart recovery.
Tobi is a complete SMS marketing solution that helps you connect with customers through targeted text messages. Send promotional offers, order updates, and automated cart recovery messages to bring shoppers back to your store. Create smart SMS automations to reward new customers with discounts, re-engage existing buyers, and send personalized birthday greetings with special offers. The app's text marketing campaigns let you target specific customer segments or reach your entire customer base. With features like abandoned cart recovery texts and automated order status updates, Tobi makes it simple to build customer relationships and drive more sales through SMS marketing. Set up customized text message sequences to cross-sell products and keep customers coming back to your store.
