ES Back in Stock Notify Me! vs Preorder, Back In Stock ‑ STOQfor Shopify (2026)
ES Back in Stock Notify Me! and Preorder, Back In Stock - STOQ both address the issue of lost sales due to out-of-stock products, but they take different approaches. ES Back in Stock Notify Me! positions itself as a comprehensive solution for recovering sales with AI-powered inventory alerts and on-site engagement tools like popups and forms. It emphasizes automated, intelligent notifications designed to maximize conversion rates. STOQ, on the other hand, focuses on capturing sales *before* restock through preorders, backorders, and partial payments, alongside back in stock notifications. STOQ offers more sophisticated pre-sales capabilities, while ES focuses on optimizing the notification process for restocked items.
At a Glance
ES Back in Stock Notify Me!
474 reviews
Preorder, Back In Stock ‑ STOQ
2,132 reviews
Detailed Overview
ES Back in Stock Notify Me!
Recover sales with AI inventory alerts(email & SMS), popups, forms, and product page sections.
Key Features
- AI-powered automatic email/SMS notifications reach customers at the right time
- Show button and popup on out-of-stock product & collection pages
- Edit email template freely in block section
- Multiple languages templates
- Inventory alert per warehouse / location
Preorder, Back In Stock ‑ STOQ
Sell preorder & backorders with partial payments. Send Back in stock alerts on restock to waitlists!
Key Features
- Add Preorder or Notify me widget to your out of stock products in minutes
- Customize preorder button, restock alerts to match your brand, with 24*7 help
- Send back in stock email/SMS alerts to waitlist when you restock automatically
- Set up preorder, presales, back orders, deposit or partial payment orders
- B2B preorders, sync mailing list w/ Klaviyo, connect markets, locations & more
Feature Comparison
| Rating | 4.9/5 | 5/5 |
Rating ES Back in Stock Notify Me!4.9/5 Preorder, Back In Stock ‑ STOQ5/5 | ||
| Reviews | 474 | 2132 |
Reviews ES Back in Stock Notify Me!474 Preorder, Back In Stock ‑ STOQ2132 | ||
| Focus | AI-powered back in stock notifications | Preorders, backorders, and back in stock notifications |
Focus ES Back in Stock Notify Me!AI-powered back in stock notifications Preorder, Back In Stock ‑ STOQPreorders, backorders, and back in stock notifications | ||
| Key Differentiator | AI-optimized email/SMS notifications | Partial payment support for preorders/backorders |
Key Differentiator ES Back in Stock Notify Me!AI-optimized email/SMS notifications Preorder, Back In Stock ‑ STOQPartial payment support for preorders/backorders | ||
| On-site Components | Popups, forms, sold out badges, product page sections | Preorder and Notify Me widgets |
On-site Components ES Back in Stock Notify Me!Popups, forms, sold out badges, product page sections Preorder, Back In Stock ‑ STOQPreorder and Notify Me widgets | ||
| Advanced Features | Inventory alert per warehouse / location | B2B preorders, Klaviyo sync, markets & locations support |
Advanced Features ES Back in Stock Notify Me!Inventory alert per warehouse / location Preorder, Back In Stock ‑ STOQB2B preorders, Klaviyo sync, markets & locations support | ||
| Target Merchant | Merchants primarily concerned with recovering sales from restocked items effectively | Merchants seeking to capture revenue from out-of-stock products through preorders and backorders |
Target Merchant ES Back in Stock Notify Me!Merchants primarily concerned with recovering sales from restocked items effectively Preorder, Back In Stock ‑ STOQMerchants seeking to capture revenue from out-of-stock products through preorders and backorders | ||
| Ease of Use (Inferred) | Implies ease of customization & setup | Focus on 24/7 support suggests a potentially more complex setup or wider range of features |
Ease of Use (Inferred) ES Back in Stock Notify Me!Implies ease of customization & setup Preorder, Back In Stock ‑ STOQFocus on 24/7 support suggests a potentially more complex setup or wider range of features | ||
| Value Proposition | Maximize conversion rates on restocks through AI | Generate revenue from out of stock products through pre-sales |
Value Proposition ES Back in Stock Notify Me!Maximize conversion rates on restocks through AI Preorder, Back In Stock ‑ STOQGenerate revenue from out of stock products through pre-sales | ||
Our Verdict
For merchants primarily focused on maximizing conversions when products are restocked, ES Back in Stock Notify Me! is the better choice. Its AI-powered optimization of email and SMS notifications offers a data-driven approach to recapturing lost sales. The on-site components also contribute to a better user experience. However, for businesses that want to capture revenue before restock by offering preorders and backorders, especially with features like partial payments and B2B support, STOQ is the superior option. STOQ is also a better fit for those needing advanced features like Klaviyo integration and multi-location support.
Common Questions
Which app has a higher user rating?
Preorder, Back In Stock - STOQ has a slightly higher user rating of 5/5 compared to ES Back in Stock Notify Me!'s 4.9/5.
Which app has more reviews?
Preorder, Back In Stock - STOQ has significantly more reviews with 2132 compared to ES Back in Stock Notify Me!'s 474.
Which app is better for offering preorders?
Preorder, Back In Stock - STOQ is specifically designed for preorders and backorders, offering features like partial payments and dedicated widgets.
Which app focuses more on automated back in stock notifications?
While both offer back in stock notifications, ES Back in Stock Notify Me! places a greater emphasis on AI-powered optimization of these notifications for maximum conversion.
Does either app integrate with Klaviyo?
Preorder, Back In Stock - STOQ explicitly mentions integration with Klaviyo for email marketing.
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