Notify! Back in Stock|PreOrder vs Upsell & Cross Sell — Selleasyfor Shopify (2026)
Notify! Back in Stock|PreOrder and Upsell & Cross Sell — Selleasy, while both boasting a strong 4.9/5 rating, cater to fundamentally different needs. Notify! focuses on recovering lost sales due to out-of-stock situations and enhancing customer engagement through pre-orders and wishlists. It's designed for merchants who frequently experience stockouts or sell products that benefit from pre-order capabilities. Upsell & Cross Sell — Selleasy, on the other hand, is dedicated to increasing average order value (AOV) through strategic product recommendations and bundles, targeting merchants aiming to boost sales within their existing customer base.
At a Glance
Notify! Back in Stock|PreOrder
2,483 reviews
Upsell & Cross Sell — Selleasy
1,899 reviews
Detailed Overview
Notify! Back in Stock|PreOrder
Notify Me! for back in stock alert, backorder, out of stock waiting list, low stock alert & wishlist
Key Features
- Accept B2B preorders for your chosen catalogs and locations alongside D2C
- Save products with Wishlist button even when not logged in (Guest Wishlist)
- Works with your other tools and apps to create back order and restock workflows
- Human in-house customer support team
- Low stock alert and widget, multilingual tools, forecasting, resend, and more!
Upsell & Cross Sell — Selleasy
AOV+ by bundling product addons & related products in cart upsell, checkout & post purchase upsell.
Key Features
- Show Amazon-style "frequently bought together" product upsell bundles.
- Cross sell product add ons on the product page. Embed as list / grid / carousel.
- Pop-up a cart upsell funnel / display in cart upsells that work with your theme.
- Display checkout upsells and post purchase upsell page with one click upsell.
- Cross sell related products using the thank you page upsell & order status page.
Feature Comparison
| Rating | 4.9/5 | 4.9/5 |
Rating Notify! Back in Stock|PreOrder4.9/5 Upsell & Cross Sell — Selleasy4.9/5 | ||
| Reviews | 2483 | 1899 |
Reviews Notify! Back in Stock|PreOrder2483 Upsell & Cross Sell — Selleasy1899 | ||
| Core Functionality | Back in Stock Notifications, Pre-Orders, Wishlists | Upselling, Cross-Selling, Product Bundles |
Core Functionality Notify! Back in Stock|PreOrderBack in Stock Notifications, Pre-Orders, Wishlists Upsell & Cross Sell — SelleasyUpselling, Cross-Selling, Product Bundles | ||
| Target Merchant | Merchants with frequent stockouts, D2C & B2B stores | Merchants focused on AOV increase |
Target Merchant Notify! Back in Stock|PreOrderMerchants with frequent stockouts, D2C & B2B stores Upsell & Cross Sell — SelleasyMerchants focused on AOV increase | ||
| Key Benefit | Recovers lost sales, increases customer engagement | Boosts AOV, drives additional purchases |
Key Benefit Notify! Back in Stock|PreOrderRecovers lost sales, increases customer engagement Upsell & Cross Sell — SelleasyBoosts AOV, drives additional purchases | ||
| Pricing Tier Details | Details unavailable in provided context, likely subscription | Details unavailable in provided context, likely subscription |
Pricing Tier Details Notify! Back in Stock|PreOrderDetails unavailable in provided context, likely subscription Upsell & Cross Sell — SelleasyDetails unavailable in provided context, likely subscription | ||
| Customer Support | Human in-house customer support team | Support type unstated |
Customer Support Notify! Back in Stock|PreOrderHuman in-house customer support team Upsell & Cross Sell — SelleasySupport type unstated | ||
| Integration type | Works with other apps to create backorder and restock workflows | Selleasy widgets are embedded, checkout upsell uses extensions |
Integration type Notify! Back in Stock|PreOrderWorks with other apps to create backorder and restock workflows Upsell & Cross Sell — SelleasySelleasy widgets are embedded, checkout upsell uses extensions | ||
Our Verdict
The choice between Notify! and Selleasy hinges on a merchant's primary objective. If a store struggles with stock management and loses sales due to out-of-stock items, Notify! is the clear choice. Its back-in-stock alerts, pre-order capabilities, and wishlist feature are invaluable for recapturing lost revenue and building customer loyalty. Conversely, merchants prioritizing AOV and looking to maximize sales from existing traffic will find Selleasy more beneficial. Its upsell and cross-sell features are designed to encourage customers to purchase more products, ultimately boosting revenue per transaction. Notify! is likely best for stores selling limited-edition or highly sought-after items while Selleasy suits stores with a wide range of related products.
Common Questions
Which app is better for recovering lost sales?
Notify! Back in Stock|PreOrder is specifically designed to recover lost sales due to out-of-stock products. Its back-in-stock notifications and pre-order options directly address this issue.
Which app is better for increasing average order value?
Upsell & Cross Sell — Selleasy is the better choice for increasing average order value. Its features focus on encouraging customers to add more products to their carts through upsells, cross-sells, and product bundles.
Does Notify! Back in Stock|PreOrder support B2B pre-orders?
Yes, Notify! explicitly states it accepts B2B pre-orders alongside D2C pre-orders for chosen catalogs and locations.
Can Upsell & Cross Sell — Selleasy be used on the Thank You page?
Yes, Upsell & Cross Sell — Selleasy can cross sell related products using the Thank you page upsell & order status page.
Do both apps offer customer support?
Notify! Back in Stock|PreOrder offers human in-house customer support. Customer support details for Upsell & Cross Sell — Selleasy are not specified in the provided information.
Get More From Your Shopify Store
Run audits for SEO, CRO, PageSpeed, and AI visibility. Get a clear report and actionable fixes.
Try Fix My Store