REZ Back In Stock Notify Me vs StockIQ ‑ Out‑of‑Stock Managerfor Shopify (2026)
REZ Back In Stock Notify Me and StockIQ ‑ Out‑of‑Stock Manager both address stock alerts and out-of-stock scenarios on Shopify, but they cater to different merchant needs. REZ focuses on pre-orders and backorders, allowing merchants to continue generating revenue even when products are unavailable by accepting pre-sales with partial or full payments. This positions REZ as a solution for merchants who want to actively manage and profit from product unavailability. In contrast, StockIQ emphasizes automation and streamlined inventory management by hiding or pushing down out-of-stock items to maintain a clean storefront. It is built for merchants seeking to minimize manual effort and provide a seamless customer experience during stockouts.
At a Glance
REZ Back In Stock Notify Me
44 reviews
StockIQ ‑ Out‑of‑Stock Manager
118 reviews
Detailed Overview
REZ Back In Stock Notify Me
Sell preorder & backorders with full/part payments. Notify me when out of stock, back in stock alert
Key Features
- Add Preorder or Notify me widget to your products
- Set up pre-order manager, presale, back orders, deposit or partial payment order
- Customize preorder button, restock notification to match your brand
- Automatically send back in stock alerts to waitlist when you restock product
- Use analytics to track demand, forecast inventory, and measure revenue
StockIQ ‑ Out‑of‑Stock Manager
Keep sold-out items out of sight, notify customers on restock & get low-stock alerts automatically.
Key Features
- Push down or auto-hide out-of-stock products in real time by collection.
- Let customers subscribe to back-in-stock alerts when items return.
- Get low-stock and out-of-stock alerts via email or in-app notifications.
- Export and download inventory reports to plan and manage restocking.
- Customize visibility rules per collection with delays and auto-republish.
Feature Comparison
| Rating | 5/5 | 4.9/5 |
Rating REZ Back In Stock Notify Me5/5 StockIQ ‑ Out‑of‑Stock Manager4.9/5 | ||
| Reviews | 44 | 118 |
Reviews REZ Back In Stock Notify Me44 StockIQ ‑ Out‑of‑Stock Manager118 | ||
| Core Functionality | Pre-orders & Backorders with Payment | Automated Stock Visibility & Alerts |
Core Functionality REZ Back In Stock Notify MePre-orders & Backorders with Payment StockIQ ‑ Out‑of‑Stock ManagerAutomated Stock Visibility & Alerts | ||
| Payment Options | Full/Partial Payments & Deposits | None |
Payment Options REZ Back In Stock Notify MeFull/Partial Payments & Deposits StockIQ ‑ Out‑of‑Stock ManagerNone | ||
| Stock Visibility | Adds Notify Me Widget | Hides/Pushes Down Out-of-Stock Products |
Stock Visibility REZ Back In Stock Notify MeAdds Notify Me Widget StockIQ ‑ Out‑of‑Stock ManagerHides/Pushes Down Out-of-Stock Products | ||
| Reporting | Demand & Revenue Analytics | Restock Reports |
Reporting REZ Back In Stock Notify MeDemand & Revenue Analytics StockIQ ‑ Out‑of‑Stock ManagerRestock Reports | ||
| Target Merchant | Merchants who want to generate revenue during stockouts | Merchants who want to automate stock visibility and minimize manual cleanup |
Target Merchant REZ Back In Stock Notify MeMerchants who want to generate revenue during stockouts StockIQ ‑ Out‑of‑Stock ManagerMerchants who want to automate stock visibility and minimize manual cleanup | ||
| Ease of Use (Inferred) | Potentially more complex due to payment options | Potentially simpler due to automation features |
Ease of Use (Inferred) REZ Back In Stock Notify MePotentially more complex due to payment options StockIQ ‑ Out‑of‑Stock ManagerPotentially simpler due to automation features | ||
| Value Proposition | Generate revenue with pre-orders and backorders. | Reduce manual work and improve customer experience with automated stock management. |
Value Proposition REZ Back In Stock Notify MeGenerate revenue with pre-orders and backorders. StockIQ ‑ Out‑of‑Stock ManagerReduce manual work and improve customer experience with automated stock management. | ||
Our Verdict
For merchants primarily concerned with maintaining a clean and sales-focused storefront while minimizing manual inventory management, StockIQ ‑ Out‑of‑Stock Manager is the better choice. Its automated visibility rules and streamlined reporting will be particularly beneficial. However, if the merchant wants to actively engage customers during out-of-stock periods and generate revenue through pre-orders and backorders, REZ Back In Stock Notify Me is the preferred option. The partial payment functionality offered by REZ is a significant differentiator for businesses looking to capitalize on customer demand regardless of current stock levels.
Common Questions
Which app allows me to take payments for out-of-stock items?
REZ Back In Stock Notify Me allows you to accept pre-orders, backorders, and presale orders with deposits or partial payment.
Does StockIQ offer any payment options?
No, StockIQ does not offer any payment options for out-of-stock items. It focuses on stock visibility and alerts.
Which app is better for large stores with a lot of inventory?
StockIQ is likely better suited for larger stores because of its emphasis on automation and inventory management, which can save a significant amount of time.
Can I customize the appearance of the notifications with both apps?
Both apps allow some level of customization. REZ lets you customize the preorder button and restock notification. StockIQ lets you customize visibility rules.
Which app provides more comprehensive analytics?
REZ provides analytics to track demand, forecast inventory, and measure revenue generated from pre-orders and backorders. StockIQ focuses on restock reports.
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