Double-tap the back of your phone. Get the max bid.

1. Build the Shortcut

1. 1

   Create it

   Open Shortcuts, tap + in the top right, and name the shortcut bidcheck.

2. 2

   Take Screenshot

   Tap Add Action, search for Take Screenshot and add it.

3. 3

   Resize Image

   Add Resize Image. Set width to 1024 and leave height on Auto. This keeps the upload small and fast.

4. 4

   Convert Image

   Add Convert Image and set it to JPEG.

5. 5

   Get Contents of URL

   Add Get Contents of URL and paste this URL:

   https://bidcheck.pages.dev/quick Copy

   Tap Show More, then set:

   • MethodPOST
   • Request BodyFile
   • FileConverted Image (tap the field and pick the variable)

   Want a different margin? Add it to the end of the URL, for example /quick?margin=25 for 25%. The default is 20%.

6. 6

   Show Notification

   Add Show Notification. Tap its text field and pick the Contents of URL variable.

7. 7

   Run it once

   Tap the play button. When iOS asks to share the image with the bidcheck site, choose Always Allow so it never asks in the middle of an auction.

2. Turn on Back Tap

1. 1

   Open Settings and go to Accessibility, then Touch, then Back Tap.

2. 2

   Tap Double Tap, scroll down to the Shortcuts section and pick bidcheck.

3. Use it live

SHORTCUTSnow

Charizard ex · OBF 125 · mkt $50.00 · MAX BID $34.00

When the card is on screen, double-tap the back of your phone. A few seconds later the notification shows the card, its market price and your max bid.

• low confidence or best guess means the card was hard to read or matched more than one printing. Double-check before you bid big.
• Graded slabs show the raw card price, not the graded value.
• Messages starting with bidcheck: are errors. Nothing was priced, so don't bid off them.
• Card too small on screen? Open the web app, pick the screenshot and crop to the card.