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Tracks Amazon price history and alerts you to good deals. As an Amazon Associate, we may earn a commission at no extra cost to you. Z Tracker – Price History for Amazon Z stands for Zero. Zero data stored. 100% private. Z Tracker runs entirely on your device. There is no Z Tracker server and no account: your tracked products and price history are stored only in your browser, and we never store your data. Features: - Builds a 1-year price history for the products you track (lowest, average and current price). - Records used / second-hand prices when Amazon shows them. - Desktop notifications when a tracked price drops or reaches your target. - Out of stock and restock alerts. - Telegram Alerts: Get price drop alerts directly on your phone. - One-click "Z Track -5%" button on Amazon product pages. - Interactive mini-charts and automatic dark mode. How it works: price history starts the day you track a product and grows each time you visit its page or Z Tracker checks it in the background. Privacy & Telegram: Your price history never leaves this browser. Telegram alerts are routed through a stateless Cloudflare Worker that stores nothing. Each alert contains the product name, current price, 1-year average, image URL, and product URL (which may include our affiliate tag). Telegram keeps this message in your chat like any other message. Affiliate disclosure: Z Tracker is free. Affiliate links are off by default. If you turn them on in Settings, links from deal panels and notifications include Z Tracker's Amazon affiliate tag, and we may earn a commission at no extra cost to you. As an Amazon Associate, Z Tracker earns from qualifying purchases.
Oct 20, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.