A1: back in stock | sms alerts vs REZ Back In Stock Notify Mefor Shopify (2026)
A1: back in stock | sms alerts and REZ Back In Stock Notify Me are both Shopify apps designed to recapture lost sales due to out-of-stock products. However, they approach this problem from slightly different angles. A1 focuses primarily on simple and direct back-in-stock notifications via email, SMS, and Meta Messenger. It aims to quickly alert customers when items are restocked with customizable alerts and supports data import for existing customer lists. REZ, on the other hand, expands beyond basic notifications to incorporate pre-orders and backorders with options for partial or full payments. It aims to not only notify customers but also generate revenue early on out-of-stock items, providing more advanced revenue capture and inventory forecasting tools.
At a Glance
A1: back in stock | sms alerts
38 reviews
REZ Back In Stock Notify Me
44 reviews
Detailed Overview
A1: back in stock | sms alerts
Restock alerts via SMS/email + Meta. Auto-recover sales lost to stockouts!
Key Features
- Fully customizable design of the ‘Notify me’ badge and ‘Back in Stock’ pop-up
- Editable back in stock notification templates in different languages
- Customers specify how long they can wait for the product to be back in stock
- Automated notifications and reminders for restocked items via email, sms or Meta
- CSV data import in one click
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
Feature Comparison
| Rating | 4.8/5 | 5/5 |
Rating A1: back in stock | sms alerts4.8/5 REZ Back In Stock Notify Me5/5 | ||
| Reviews | 38 | 44 |
Reviews A1: back in stock | sms alerts38 REZ Back In Stock Notify Me44 | ||
| Notification Channels | Email, SMS, Meta Messenger | |
Notification Channels A1: back in stock | sms alertsEmail, SMS, Meta Messenger REZ Back In Stock Notify MeEmail | ||
| Pre-orders/Backorders | No | Yes, with full/partial payments |
Pre-orders/Backorders A1: back in stock | sms alertsNo REZ Back In Stock Notify MeYes, with full/partial payments | ||
| Reporting/Analytics | Not explicitly mentioned | Analytics to track demand and revenue |
Reporting/Analytics A1: back in stock | sms alertsNot explicitly mentioned REZ Back In Stock Notify MeAnalytics to track demand and revenue | ||
| Data Import | CSV data import | Not explicitly mentioned |
Data Import A1: back in stock | sms alertsCSV data import REZ Back In Stock Notify MeNot explicitly mentioned | ||
| Target Merchant Type | Merchants needing simple, multi-channel back-in-stock alerts | Merchants wanting to generate revenue from pre-orders/backorders |
Target Merchant Type A1: back in stock | sms alertsMerchants needing simple, multi-channel back-in-stock alerts REZ Back In Stock Notify MeMerchants wanting to generate revenue from pre-orders/backorders | ||
| Ease of Use | Likely simpler setup due to focus on core notification features | Potentially more complex setup due to pre-order/backorder functionality |
Ease of Use A1: back in stock | sms alertsLikely simpler setup due to focus on core notification features REZ Back In Stock Notify MePotentially more complex setup due to pre-order/backorder functionality | ||
| Value Proposition | Recover lost sales through timely restock alerts | Generate revenue early and forecast inventory |
Value Proposition A1: back in stock | sms alertsRecover lost sales through timely restock alerts REZ Back In Stock Notify MeGenerate revenue early and forecast inventory | ||
- Conversion Audit
- Speed Audit
- SEO Audit
Conversion Audit
Our Verdict
For merchants who prioritize ease of use and require simple but effective back-in-stock notifications across multiple channels (SMS, email, and Meta Messenger), A1: back in stock | sms alerts appears to be the better choice. Its CSV data import feature also simplifies the initial setup. However, for merchants looking to actively generate revenue while managing out-of-stock products through pre-orders, backorders, and partial payments, REZ Back In Stock Notify Me is the more robust solution. Its analytics capabilities will also be beneficial for demand forecasting and inventory management, despite fewer notification channels.
Common Questions
Does A1: back in stock | sms alerts support pre-orders or backorders?
No, A1: back in stock | sms alerts focuses primarily on notifying customers when items are back in stock and does not offer pre-order or backorder functionality.
Which app offers more advanced analytics and reporting?
REZ Back In Stock Notify Me specifically mentions analytics for tracking demand, forecasting inventory, and measuring revenue. A1: back in stock | sms alerts does not explicitly mention any advanced analytics features.
Can I customize the notification messages in both apps?
Yes, both apps allow customization of notification messages. A1: back in stock | sms alerts mentions editable notification templates, and REZ Back In Stock Notify Me allows customizing the restock notification to match the brand.
Which app supports SMS notifications?
A1: back in stock | sms alerts explicitly supports SMS notifications, while REZ Back In Stock Notify Me only mentions email notifications.
Is it easier to migrate existing customer data with either app?
A1: back in stock | sms alerts offers a one-click CSV data import feature, making it easier to migrate existing customer data compared to REZ Back In Stock Notify Me, which doesn't explicitly mention this feature.
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