Side-by-side comparison

iAlert ‑ Low Stock Alert vs REZ Back In Stock Notify Mefor Shopify (2026)

A detailed comparison of iAlert ‑ Low Stock Alert and REZ Back In Stock Notify Me to help you pick the right Shopify app for your store.

4.7 ★

iAlert ‑ Low Stock Alert

5.0 ★

REZ Back In Stock Notify Me

Shared Category

Stock alerts

At a Glance

4.7

62 reviews

5.0

44 reviews

Easily automate low stock alerts for product variants via email or slack.

4.7

62 reviews

Create unlimited alerts to receive notifications instant or on scheduled basis
Location based rules configuration and notification of stocks by location
Adjust item inventory calculation by Available, Incoming or other quantity types
Set threshold common for all items or different threshold for different variants
Filter items by tag, products, variants, status and more...

Sell preorder & backorders with full/part payments. Notify me when out of stock, back in stock alert

5.0

44 reviews

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

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