Back in Stock,Pre Order,Alerts (NotifyPro) and Preorder, Back In Stock ‑ STOQ are Shopify apps designed to help merchants recover lost sales from out-of-stock items. Both offer back-in-stock notifications and pre-order functionality. However, STOQ appears to be a more mature and feature-rich solution. It boasts significantly more user reviews and explicitly supports partial payments and B2B preorders, features absent from NotifyPro's description. NotifyPro focuses more heavily on AI-based interest alerts and detailed analytics of notification performance, which could be appealing to merchants focused on hyper-personalization and data-driven optimization of alerts.
30 reviews
2,132 reviews
PreOrder, Back in Stock Notifications, , Low Stock Alerts, Interest Alerts, Out of Stock, Low Stock
Sell preorder & backorders with partial payments. Send Back in stock alerts on restock to waitlists!
| Rating | 4.7/5 | 5/5 |
Rating Back in Stock,Pre Order,Alerts4.7/5 Preorder, Back In Stock ‑ STOQ5/5 | ||
| Reviews | 30 | 2132 |
Reviews Back in Stock,Pre Order,Alerts30 Preorder, Back In Stock ‑ STOQ2132 | ||
| Pre-Order Functionality | Yes | Yes, with Partial Payments |
Pre-Order Functionality Back in Stock,Pre Order,AlertsYes Preorder, Back In Stock ‑ STOQYes, with Partial Payments | ||
| Back-in-Stock Notifications | Email, SMS, Push | Email, SMS |
Back-in-Stock Notifications Back in Stock,Pre Order,AlertsEmail, SMS, Push Preorder, Back In Stock ‑ STOQEmail, SMS | ||
| AI-Based Interest Alerts | Yes | No (Implicitly) |
AI-Based Interest Alerts Back in Stock,Pre Order,AlertsYes Preorder, Back In Stock ‑ STOQNo (Implicitly) | ||
| Analytics | Notification Performance | General Analytics |
Analytics Back in Stock,Pre Order,AlertsNotification Performance Preorder, Back In Stock ‑ STOQGeneral Analytics | ||
| Customer Support | Not Specified | 24/7 |
Customer Support Back in Stock,Pre Order,AlertsNot Specified Preorder, Back In Stock ‑ STOQ24/7 | ||
| B2B Preorders | No | Yes |
B2B Preorders Back in Stock,Pre Order,AlertsNo Preorder, Back In Stock ‑ STOQYes | ||
| Klaviyo Sync | No | Yes |
Klaviyo Sync Back in Stock,Pre Order,AlertsNo Preorder, Back In Stock ‑ STOQYes | ||
Preorder, Back In Stock - STOQ is the superior option for most Shopify merchants in 2026. Its substantially higher review count (2132 vs 30) and perfect rating suggest greater user satisfaction and reliability. Its support for partial payments, B2B preorders, and Klaviyo sync provide a more robust and integrated solution. However, Back in Stock,Pre Order,Alerts (NotifyPro) might be preferable for merchants specifically prioritizing AI-driven interest-based alerts and a deeper focus on analyzing notification performance, although the low number of reviews is a concern.
While neither description explicitly mentions ease of setup, STOQ's emphasis on 24/7 customer support suggests a potentially easier onboarding experience, as users have direct access to assistance.
Both apps claim customization for notifications. NotifyPro highlights customization across channels (Email/SMS/PN), while STOQ emphasizes matching the branding. It's difficult to definitively say which offers *more*, but both offer good customization. STOQ mentions 24/7 support for it.
Preorder, Back In Stock ‑ STOQ explicitly supports B2B preorders, making it the clear choice for businesses selling to other businesses.
STOQ explicitly mentions Klaviyo sync and connections to various markets and locations. NotifyPro's description does not specify any integrations beyond channels for notifications. Therefore, STOQ appears to offer more integrations.
NotifyPro highlights AI-based interest alerts and analytics related to notification performance. STOQ mentions general analytics but doesn't elaborate. If analyzing notification effectiveness is a primary concern, NotifyPro may have the edge, though the lack of overall reviews is a risk.
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