Price Tracker for Amazon is a Chrome extension that keeps a price history for the Amazon products you choose and sends a Chrome notification when a price reaches your target. Click Track price on a product page; it records the price when you visit and re-checks every 6, 12, 24 or 48 hours. A chart shows the lowest and highest price, and it supports Amazon stores in 21 countries with JSON import and export. Price history stays in your browser.
Free for up to 10 products. Optional Pro is a one-time 4.99 EUR with no subscription, adding unlimited products and CSV export; one key works in up to 3 browsers. Not affiliated with, endorsed by, or sponsored by Amazon.
Most price trackers I tried want an account or add affiliate tags to links. I wanted the opposite, so I built one that keeps your price history in your browser.