Features
Stocklet does one job — turn sold-out demand into paid orders when inventory returns. Here is exactly how each piece works, and why it's built the way it is.
Size Small waits for Small. Forest waits for Forest. Stocklet tracks demand at the variant level, so the only shopper notified when a variant returns is the one who asked for that exact option — not everyone who ever looked at the product. That precision is what keeps your restock emails relevant enough to convert instead of annoy.
This is the difference that pays for itself. Most back-in-stock apps email shoppers back to the product page, where they have to re-select the variant and decide all over again. Stocklet drops them into a pre-filled Shopify checkout with the exact variant already in the cart, ready to pay. One tap, fewer abandoned sales.
The Notify Me block hides automatically on in-stock variants and appears the moment a shopper switches to one that's sold out. It updates live as they change options — no popups, no page reloads, no clutter on the product page. It installs as a theme app block you drag into place in the theme editor, with no Liquid edits.
Stocklet listens to Shopify's inventory_levels/update webhook and fires email through Resend with no batch delay. The moment a variant flips back to in-stock, the matching waitlist hears about it — there's no polling loop or hourly digest standing between the restock and the shopper. Actual inbox delivery still depends on the recipient's email provider.
Paste a Klaviyo private API key in Settings and pick a list. Every new signup fires a 'Subscribed to Back in Stock' event carrying the email, product title, image, price, and IDs, so your existing Klaviyo flows take over from there. It's included from the $9 Starter plan rather than gated behind a top tier.
Two attribution paths run in parallel. A hidden stocklet_subscription_id cart attribute ties each order back to the exact signup, and a 7-day email-and-variant fallback catches shoppers who returned on their own. Your dashboard reports recovered dollars, conversion rate, and the products your customers most want back — not opens and clicks.
Walk through the five-step loop Stocklet runs on every restock, or compare plans — there's a permanent free tier.