STOK: Back in Stock & Preorder
Out of stock alert & Price Drop alert on SMS, Whatsapp & Email
Developed by SyncResource App Suite
App Overview
Stok: Back In Stock Alert is a Shopify app designed to help merchants notify customers via email, SMS, or WhatsApp when products are back in stock or on sale. The app's key features include automatic notifications, customizable templates and widgets, a waitlist for out-of-stock products, product analytics, and the ability to grow an email list by syncing customer data. These tools help businesses recover lost sales, boost demand, and enhance customer engagement with minimal setup effort.
Pros
- Enhanced customer engagement: Sends automatic notifications to customers via email or SMS when products are restocked, creating demand and boosting sales.
- Personalized user experience: Allows customization of notifications to match brand aesthetics and customer preferences, improving the shopping experience.
- Increased conversion rate: Generates reminders for customers to convert, reducing lost sales and increasing revenue.
- Comprehensive performance insights: Provides detailed reports on lost sales and revenue recovered, enabling businesses to optimize their restock strategies and maximize profitability.
Screenshots

Back in stock alerts, price drop & preorder notifications via Email, SMS & WhatsApp. Recover sales.
Back in stock alerts, price drop notifications & preorder management via Email, SMS & WhatsApp. Capture demand with "Notify Me" widgets on product & collection pages — zero code, live in minutes. Automatically notify customers when items restock, prices drop, or sales start. Boost conversions with repeat reminders, multi-language templates & upsell recommendations. Track recovered revenue, email delivery logs & subscriber growth. Klaviyo integration, CSV export & 24/7 support included.
Key Features
- Never lose a sale — auto notify customers when items are back in stock
- Price drop & sales alerts that bring customers back to buy instantly
- Sell before you stock — preorder with partial payment & discounts
- Notify via Email, SMS & WhatsApp in your customer's language
- One-click setup, fully customizable widget, zero coding needed
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STOK: Back in Stock & Preorder FAQs
Yes! Try STOK: Back in Stock & Preorder free plan. For more details about STOK: Back in Stock & Preorder pricing, check here.

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