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Klaviyo: Email Marketing & SMS

Go beyond the basics with the Klaviyo marketing app. New stores get a guided setup — sign-up form, welcome email, and abandoned-checkout flow — without leaving Shopify Admin. Unify data from 350+ integrations and boost marketing performance with campaigns, smart segmentation, and automated workflows from Klaviyo’s AI Agents. Over 117k brands use Klaviyo and Shopify to grow faster with personalized emails, SMS, WhatsApp messages, and marketing automation tools that turn browsers into buyers.

Rating

4.5 / 4,966 reviews

Categories

Email marketingSMS marketing

Developer

Klaviyo

Tracked since

Oct 2025

Preorder, Back In Stock ‑ STOQ

Use STOQ's Preorder or Notify Me button to create waitlists for out of stock products. Offer pre-order, backorder, presales with deposits or partial payment and unlock preorder revenue today. Or send back in stock when you restock via email/SMS automatically. Customize everything with 24*7 help. With STOQ, send back in stock alerts and get preorders with many features built for you - multiple locations, Klaviyo sync & back in stock emails, analytics, markets, reminder alerts & more!

Rating

5 / 4,204 reviews

Categories

Pre-ordersStock alerts

Developer

Artos Software

Tracked since

Oct 2025

Swym Wishlist Plus

Wishlist Plus enables your shoppers to save favorites and return to them later. Comes with powerful APIs to customize wishlists and integrates with leading email services to send price drop and restock alerts. Helps shoppers organize products into multiple wishlists and share them via emails, SMS, and socials. Supports anonymous wishlists. Comes with detailed reports on shopper behavior. Includes a new Customer Accounts extension for easy tracking of all wishlists and browsing activity.

Rating

4.8 / 2,559 reviews

Categories

Email marketingWishlists

Developer

Swym Corporation

Tracked since

Oct 2025

Flits Loyalty Rewards Program

Create a flexible loyalty and rewards program designed to drive retention and repeat purchases. Go beyond basic points with personalized rewards that keep customers engaged and returning to your store. Increase lifetime customer value through referral programs that motivate new customer acquisition. Use smart on-site loyalty features that appear at the right moment to improve conversions, reward behavior, and turn first-time buyers into consistent repeat long-term revenue.

Rating

4.9 / 745 reviews

Categories

Loyalty and rewardsWishlists

Developer

Flits

Detected

October 30, 2026

Swym Back in Stock Alerts

Add a "Notify me" button in minutes to enable automatic back in stock email or SMS alerts when you restock. Maximize sales by capturing demand before you have inventory with the preorder feature. Show AI powered in-stock recommendations for out of stock products. Customize to match your site’s theme. Automate back in stock and restock alerts via your ESP or SMS platform. Advanced inventory control capabilities like batch alert send, coming soon alerts and analytics to track popular products.

Rating

4.8 / 678 reviews

Categories

Email marketingStock alerts

Developer

Swym Corporation

Detected

October 23, 2026

Swish (Wishlist King)

Wishlist King is now Swish. New look - same great team and product!! Swish is a fully customisable, feature rich Wishlist solution for brands with ambition. We offer an entirely free setup and customisation service across all plans. Customer shopping journeys are rarely linear: Swish enables shoppers to keep track of the products they want most & helps drive conversion at the optimal moment. Increase sales & customer satisfaction with highly personalised + automated Wishlist notifications.

Rating

4.9 / 459 reviews

Categories

Email marketingWishlists

Developer

Swish

Tracked since

Oct 2025