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Check prices from Amazon

Ways to get a TrackPin verdict while you're looking at a product.

Desktop browsersNothing to install

Bookmarklet

A bookmark that sends the page you're on to TrackPin. On a product page, one click takes you to its verdict: the price now, against what that product normally sells for.

Bookmarks bar hidden? In most desktop browsers, Ctrl Shift B shows it (⇧ ⌘ B on a Mac).

Check price

Drag this button to your bookmarks bar. On any amazon.com product page, click it.

Can't drag it? Add it by hand

Create a new bookmark, name it Check price, and paste this as its address:

javascript:(()=>{location.href='https://trackpin.co/check?q='+encodeURIComponent(location.href)})()

Three steps

  1. 1Drag the Check price button to your bookmarks bar.

  2. 2Open any amazon.com product page.

  3. 3Click Check price in the bar. TrackPin opens with that product's verdict.

On your phone

Send a product from the Amazon app to TrackPin without retyping anything.

Android

  1. 1
    Install TrackPin from your browser menu: Add to Home screen or Install app.
  2. 2
    In the Amazon app, tap Share → TrackPin.
  3. 3
    TrackPin opens on that product's verdict.

iPhone and iPad

  1. 1
    Copy the product link in the Amazon app.
  2. 2
    Paste it on trackpin.co.

iOS doesn't let web apps appear in the share menu. To get here faster, open trackpin.co in Safari and choose Share → Add to Home Screen.

Chrome extension

Shows TrackPin's verdict right under the price on amazon.com product pages. Free, with no account or key. It isn't in the Chrome Web Store yet, so for now it installs from a zip file.

What it can see

The extension reads only the product ID from the page and asks trackpin.co for its price history. If we don't track the product yet, trackpin.co checks it on amazon.com and starts tracking it. It stores only one setting in your browser: whether the card is switched on.

Install it

  1. 1

    Download the extension as a zip file (20 KB).

    Download the zip

  2. 2
    Unzip it. You get a folder named trackpin-extension. Keep that folder: Chrome runs the extension from it.
  3. 3
    Open chrome://extensions in the address bar and turn on Developer mode (top right).
  4. 4
    Click Load unpacked and choose the unzipped trackpin-extension folder.
  5. 5

    Open any amazon.com product page. The TrackPin card appears under the price.

    Click the TrackPin icon in the toolbar (it may be under the puzzle-piece menu) to switch the card off or check a product by link.