Stop overpaying for Shopify apps. App Cost Watchdog scans your store URL and maps your whole app stack in seconds: duplicate apps that do the same job, lower-cost alternatives, and a list-price estimate of what your stack costs. Shopify shows each app's charge on its own page. App Cost Watchdog brings them together so you can spot overlap and cut what you don't need. Monitor reads your Shopify invoice for confirmed per-app spend and flags apps that bill you but never show on your storefront.

• Duplicate-app detection and cheaper-swap suggestions from a maintained registry
• Invoice-confirmed per-app spend — real numbers parsed from your Shopify invoice
• Billed-but-not-detected: apps charging you that aren't on your storefront