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 are both Shopify apps in the 'Stock alerts' category designed to help merchants recapture lost sales from out-of-stock products. ES Back in Stock Notify Me! emphasizes AI-driven optimization of back-in-stock notifications, alongside a user-friendly interface for customization. It aims to automatically reach customers at the optimal time via email and SMS. In contrast, STOQ focuses heavily on pre-order functionality with options for partial payments and deposits, while also offering robust back-in-stock alerts. STOQ boasts significantly more reviews, suggesting a larger user base, and includes features for B2B preorders and integration with Klaviyo.
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 | ||
| Primary Focus | AI-Powered Back In Stock Alerts | Preorder/Backorder Functionality |
Primary Focus ES Back in Stock Notify Me!AI-Powered Back In Stock Alerts Preorder, Back In Stock ‑ STOQPreorder/Backorder Functionality | ||
| Preorder/Partial Payments | No explicit mention | Yes, with deposits or partial payments |
Preorder/Partial Payments ES Back in Stock Notify Me!No explicit mention Preorder, Back In Stock ‑ STOQYes, with deposits or partial payments | ||
| Warehouse/Location Support | Yes | Yes |
Warehouse/Location Support ES Back in Stock Notify Me!Yes Preorder, Back In Stock ‑ STOQYes | ||
| Third-Party Integrations | Not explicitly mentioned | Klaviyo Sync |
Third-Party Integrations ES Back in Stock Notify Me!Not explicitly mentioned Preorder, Back In Stock ‑ STOQKlaviyo Sync | ||
| Customer Support | 24/7 Live Chat | 24/7 Help |
Customer Support ES Back in Stock Notify Me!24/7 Live Chat Preorder, Back In Stock ‑ STOQ24/7 Help | ||
| Ease of Setup | Quick Setup | Add widget in minutes |
Ease of Setup ES Back in Stock Notify Me!Quick Setup Preorder, Back In Stock ‑ STOQAdd widget in minutes | ||
| Target Merchant | Merchants prioritizing automated notification optimization | Merchants focusing on pre-sales and partial payment options |
Target Merchant ES Back in Stock Notify Me!Merchants prioritizing automated notification optimization Preorder, Back In Stock ‑ STOQMerchants focusing on pre-sales and partial payment options | ||
Our Verdict
For merchants whose primary goal is to implement pre-order, backorder, or presale strategies with partial payment options, STOQ is the clear choice. Its robust features designed around pre-sales, combined with its high rating and a large number of reviews, make it a reliable option. If, however, the focus is primarily on optimizing the timing and volume of back-in-stock notifications using AI, and the pre-order functionality is not essential, ES Back in Stock Notify Me! could be a better fit, especially for merchants who are already using Online Store 2.0 themes and want tight integration with their product pages. While it has fewer reviews, its high rating indicates strong user satisfaction.
Common Questions
Which app is better for pre-order functionality?
STOQ is the superior choice for pre-order functionality, offering support for deposits, partial payments, and dedicated pre-sales features. ES Back in Stock Notify Me! does not explicitly highlight or offer pre-order capabilities.
Does ES Back in Stock Notify Me! offer pre-order?
No, based on the provided information, ES Back in Stock Notify Me! does not have explicit pre-order functionality. It focuses on back-in-stock alerts and notifications.
Which app is better for merchants needing multi-location support?
Both apps offer inventory alerts per warehouse/location, suggesting that they both cater to merchants with multi-location needs.
Which app has a larger user base?
STOQ has a significantly larger user base, indicated by its 2132 reviews compared to ES Back in Stock Notify Me!'s 474 reviews.
Which app is better for Klaviyo integration?
STOQ explicitly mentions Klaviyo sync, suggesting a better integration experience with that email marketing platform compared to ES Back in Stock Notify Me!.
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