Shopify App Comparison 2026
Shopify Forms
Preorder Back In Stock - STOQ
Which Shopify upsell app increases AOV more? Compare pricing, features, ratings & real merchant reviews for Shopify and Preorder Back In Stock - STOQ to find the best fit for your store.
Capture customer information to grow your marketing list
View Full DetailsKey Features
- Customizable popup and inline email capture forms
- Discount code delivery to incentivize signups
- Native integration with Shopify Email and customer segments
- Targeted display rules based on page, device, and visitor behavior
- Brand-matched styling with no-code customization options
Verdict on Shopify
Shopify Forms is the simplest way to add email capture to your Shopify store. Being free and built by Shopify means zero friction in setup and guaranteed compatibility. While it lacks the sophistication of dedicated popup tools like Privy or Justuno, it covers the fundamentals well and is perfect for merchants who want basic lead capture without adding another paid app to their stack.
Grow sales with preorders, notify me and back in stock alerts
View Full DetailsKey Features
- Automatic preorder button activation when products go out of stock
- Back-in-stock email and SMS notifications with automated sending
- Partial payment and pay-later preorder options for flexible purchasing
- Coming soon pages for product launches with early interest capture
- Real-time inventory sync with automatic status switching
Verdict on Preorder
STOQ is the go-to solution for Shopify merchants dealing with inventory fluctuations or running product launches. Its ability to seamlessly switch between add-to-cart, preorder, and notify-me states based on real-time inventory makes it incredibly useful for stores with dynamic stock levels. The 5.0 rating speaks to its reliability and the quality of customer support from Artos Software.
Frequently Asked Questions
Is Shopify Forms free?
Yes, Shopify Forms is completely free for all Shopify merchants. There are no paid tiers or usage limits on the number of forms or submissions you can collect.
Does Shopify Forms work with Klaviyo or Mailchimp?
Shopify Forms is designed to work natively with Shopify Email. While captured leads are stored as Shopify customers, you can use Shopify Flow or third-party integrations to sync them to external email platforms like Klaviyo.
Can I offer a discount code through Shopify Forms?
Yes, you can configure forms to automatically deliver a discount code to new subscribers upon signup, which is an effective way to incentivize email list growth.
How does STOQ handle preorder payments?
STOQ supports both full payment and partial payment preorders. With partial payments, customers pay a deposit at checkout and the remaining balance when the product ships, reducing friction for high-value items.
Does STOQ automatically detect out-of-stock products?
Yes, STOQ syncs with your Shopify inventory in real time. When a product sells out, the buy button automatically switches to a preorder or notify-me button without any manual intervention.
Can I use STOQ for product launches?
Yes, STOQ includes a coming soon page feature that lets you build anticipation for upcoming products. Customers can sign up for launch notifications and optionally place preorders before the official release date.