ShelfHawk

ShelfHawk watches the competitor listings you choose across Etsy, eBay, Shopify and Amazon, and emails you one plain-English briefing when a price or stock level moves. Instead of opening twenty tabs on a schedule, you get the old price, the new price and the size of the move the same day it happens.

It also includes a free Etsy price checker that needs no account and no email: paste any Etsy listing URL and see where that price sits among the listings it actually competes with — the cheapest, the median, the priciest, and its position in that spread. Outliers and non-comparable listings are filtered out, so the range reflects real competitors rather than whatever shares a keyword.

Paid plans add twice-daily tracking of the listings you pick, price-change and stock-out alerts, a daily briefing, AI-written repricing suggestions, guardrailed auto-repricing inside limits you set, competitor auto-discovery, and supplier price tracking. Plans start at $39/month and the free price checker stays free.