Price Trend

Shows recorded public price history on supported retailer product pages.

Price Trend adds a small chart to supported Australian retailer product pages (currently Chemist Warehouse and Supercheap Auto) showing the recorded price history for that product. The chart shows the last ~10 price changes we have recorded — not the last 10 days, and not an official retailer history. These retailers do not publish price history. The extension only reads the product id already in the page's address bar. Use it to see whether today's sticker price is new, or the same price we have seen before. This extension: - Works only on supported retailer product pages (chemistwarehouse.com.au and supercheapauto.com.au) - Sends only the product id to a history API you configure (default: a public, static, read-only data feed — no account required) - Does not read your account, cart, browsing history, location, or any personal data - Does not collect analytics or run ads/tracking of any kind Prices are public online stickers. They can differ for online-only promotions, marketplace sellers, or special-category items. This is not a lowest-price guarantee. History only exists from the day recording started for a given product — new or rarely-viewed products may show "no history yet".