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CLUSTER STOCK-WHEN-ALERTS · 18 ENTRIES · EARLIEST ENTRY 2017-09-21

Out-of-stock restock alerts

This cluster covers products that monitor out-of-stock items and notify users when they become available again, ranging from Shopify merchant apps to consumer mobile alert apps. Dated entries before the index are sparse: one in 2017, a few across 2022–2023, then single entries in 2025 and 2026, forming no clear trend. All three traction leaders (Giranno, artisti-product-tally, Restock: Stock Alerts) show 0 stars, indicating minimal user adoption.

Entry timeline

ENTRY TIMELINE

SEP 2017: 1FEB 2022: 1MAR 2022: 1NOV 2023: 1DEC 2023: 2APR 2025: 1JUL 2025: 1JUN 2026: 1AUG 2026: 3SEP 2026: 6
SEP 2017SEP 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 18 unlabelled

Operator · 3 hobby · 1 indie · 7 commercial · 1 open source · 6 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 18 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01Restock-Watch1★25 days—hobbySelf-hosted restock watcher that polls product pages and sends one alert when an item becomes available for purchase or pre-order.
  2. 02Restock: Stock Alerts0★1 molivecommercialMobile app that monitors product pages for out-of-stock items and notifies users instantly when their size is back in stock.
  3. 03StockPing0★16 days—macOS app that monitors product availability across online fashion stores and notifies when out-of-stock items are back.
  4. 04scriptable-apple-store-pickup-widget0★26 days—hobbyiOS widget that shows Apple Store pickup availability near a postal code and notifies users when a selected product becomes available to pick up.
  5. 05TantalusHoard0★11 days—hobbyLocal product watcher that tracks restocks, price drops, pre-orders, second-hand listings, and product news, with dashboard and notifications.
  6. 06Giranno0★18 daysliveInventory app that tracks product outflow and alerts retailers before items run out on the shelf.
  7. 07SAAS-Sense0★12 days—indieSupplier availability monitor that checks authorized supplier product pages and alerts small Shopify retailers to stock status changes.
  8. 08Restockd0★1 molivecommercialReal-time restock alert app that monitors retailers and notifies users when high-demand products become available.
  9. 09CCN: TCG & Collectible Alerts0★25 dayslivecommercialMobile app that sends alerts for collectible and trading card restocks and new releases, helping users purchase limited-stock items before sellout.
  10. 10Back-in-stock0★1 mo—Notifies users when out-of-stock items become available again.
  11. 11Inventory Bot0★25 dayslivecommercialMobile app that tracks restock availability for hard-to-find products at major retailers and sends instant alerts when items become available.
  12. 12HotStock - in-stock alerts0★5 molivecommercialApp that tracks availability and prices of hard-to-find products and sends alerts when they are back in stock.
  13. 13TrackaLacker: In-stock Tracker0★27 dayslivecommercialMobile app that sends instant alerts when tracked products like collectibles, electronics, and event tickets come back in stock.
  14. 14InStock - Find & Track Product0★12 dayslivecommercialMobile app that tracks out-of-stock products across retailers and alerts users when items become available again.
  15. 15Stockpile0★1 yrabandonedliveopen sourceInventory tracking app that monitors restockable items like medication, food, and beauty products, and warns users when supplies are running low.
  16. 16Stock Checker0★1 yrabandonedliveShopping app that monitors retailer stock for in-demand items and sends real-time alerts, plus deals and reviews.
  17. 17ガンプラ再販/転売チェッカー0★unknownliveWeb app that monitors restock dates and online prices of Bandai plastic model kits to detect resale listings.
  18. 18Back In Stock Notifier - Shopify App0★unknownliveShopify app that alerts customers by notification when an out-of-stock product becomes available again.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.