Mergn

What Mergn is

Mergn is a customer retention platform built for Shopify stores. It sends email, SMS, WhatsApp messages and web push notifications, and adds on-site popups, all aimed at one job: getting existing customers to buy again. The homepage describes it as a Shopify customer retention platform that helps stores hyper-target the customers they already have, and the whole product is organized around four features, Segmentation, Campaigns, Journeys and Analytics.

The company says it is trusted by 130+ Shopify brands. Its lead case study is Highfy, which it describes as an online health and beauty store, and which it credits with a 64% increase in returning customer rate after running targeted email, SMS and WhatsApp campaigns together with Mergn's multi-channel journeys. The testimonials on the site come from marketers at Jenpharm, Naheed, Scents n Stories, Cozmetica, Sajeiro and Khazanay.

Mergn's argument for retention is spelled out on its homepage: continually buying new customers while losing old ones is not a sustainable strategy for a Shopify store, and repeat orders are the most efficient way to grow while lowering the cost per order. The site claims its customers can raise their monthly returning customer rate by up to 50% and cut cost per order by up to 2x.

Segmentation

Segments are built in a drag-and-drop builder, and because Mergn reads the store's catalog, they can use products, categories, brands, SKUs and variants as well as customer behavior. The example on the homepage selects customers who did the event Add to Cart but did not do the event Place Order within the last 30 days, which is the classic abandoned-cart audience. The segment view then shows how many of those customers can be reached on each channel, email, SMS, web push and WhatsApp, so a marketer can see before sending where a message will actually land.

Campaigns and the email editor

Campaigns cover three cases the site names: one-time sends for a product launch or promotion, recurring newsletters or weekly promotions, and behavior-driven campaigns triggered by what a customer does. Building one follows five steps: segment, goals, content, schedule and review.

The email editor works with blocks for text, buttons, images, video, dividers, headings, columns and social links. Two AI tools sit inside it: an AI image generator for visuals and an AI copywriter for email copy. The Shopify connection shows up most clearly in the product feed block, which drops recommended products into an email from sources such as the customer's last add to cart, last clicked items, best sellers, new products, stock levels or a hand-picked selection. The homepage describes its email offer as AI-powered campaigns with smart sending and personalized content. Mergn's own blog adds that the platform automates workflows such as welcome emails and abandoned cart reminders.

Journeys

Journeys are multi-channel automations. The homepage describes behavior-driven flows with personalized messages, embedded vouchers and smart reminders. The example flow waits a day, sends an email with a personal discount, waits two hours, then follows up with a featured-products message carrying a unique code. Each step shows its own funnel, from customers entered through sent, delivered, opened, clicked and converted, so a weak step is easy to find.

Other channels

• SMS covers campaigns, restock alerts, order updates and personalized offers.
• WhatsApp handles personalized messages, order updates and automated chats.
• Web push re-engages visitors in real time with discounts, launch announcements, trending products and abandoned cart recovery, without an app.
• Popups are context-aware, fire on dynamic triggers, collect email addresses and show offers, which makes them the list-building tool that feeds the other channels.

Several testimonials describe using the channels together. One marketer says Mergn lets the team send bulk emails, SMS and web push notifications with ease and re-engage old customers, and another says automating personalized messages across WhatsApp, push and SMS made retention simple to run and to track.

Reports and analytics

The analytics section tracks conversions, ROI and revenue for every journey and campaign. The live dashboard example shows revenue, orders and conversion rate over the last seven days with change against the previous period, a revenue trend line, and revenue split by channel across email, SMS and WhatsApp. A weekly digest summarizes results. One reviewer on the homepage says the analytics finally make sense to their team, and another credits the per-campaign reports with helping them improve future campaigns.

Results the site reports

The Highfy story is told through the store's returning customer rate, charted from September 2023 to September 2025, and is presented with the store's founder and CEO. Other testimonials describe similar outcomes in their own words. A marketer at Jenpharm says the team has used Mergn for over a year and seen a sharp increase in returning customers. A CRM executive at Naheed says it makes tracking performance, creating campaigns and managing journeys simple, and a performance marketer at Khazanay singles out its simplicity and the speed of the support team.

How Mergn talks about email

Mergn's blog includes a guide to choosing an email marketing platform, and it describes Mergn itself as built for businesses that want smart automation, personalization and actionable analytics, with an intuitive interface for creating campaigns, automating workflows and tracking performance. The guide sets out what it treats as the core of any email tool: drag-and-drop builders and templates so marketers can design without code, automation based on triggers such as an abandoned cart, segmentation by behavior, demographics or interests, reporting on opens, clicks and conversions, and integration with ecommerce platforms like Shopify for order confirmations, product recommendations and post-purchase email. Those are the pieces the product itself puts at the front.

Pricing and support

The site publishes no prices; stores get started by booking a demo. There is a help section linked from every page, and testimonials repeatedly mention a quick, supportive team. The site also links an About section with pages on why Mergn, why engagement and why retention.

Who it suits

Mergn suits a Shopify store, such as the health and beauty store behind its case study, that has a customer base worth bringing back and wants email, SMS, WhatsApp, web push and popups run from one set of segments. Stores that want segments built on products, SKUs and variants, and recommendations pulled straight from the catalog, get the most from it.

It is designed around Shopify data and repeat purchases, so a business outside Shopify, or a publisher sending a newsletter with nothing to sell, would find little of the product aimed at it.