Is there an id scanning app?

is there some sort of id scanner that can be added to my form to auto fill it out

There are QR Code Reader and Barcode Scanner widgets available.

If your goal is to populate multiple form fields based on a scanned ID, it may be possible to use the QR Code / Barcode reader in combination with a Spreadsheet to Form Widget.

Ok and how would I make that work
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Let me check for a possible solution, but before that, I would like a few additional information. 

From what I understand you will need to have a database first of the QR code data. That data will be pulled when the user scans the QR code they have thus identifying them.

Basically, you want an app for scanning i.e. in this case we have a QR code widget as mentioned above. Once your user scans the QR code, automatically multiple fields will be filled up with the users' data. Is that correct? 

Yes correct, I believe the format of the code im referring to is PDF 417
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You'll need to have a QR Code ready that has a unique code that will fill into one field then pass that value to your Spreadsheet to Form widget. Once the unique code matches with the attached spreadsheet, it will automatically fill the other fields with data.

The flow would be:

1). Create a spreadsheet and know your unique id's

2). Convert those ID's into QR code

3). Add QR Code Reader into your form

4). Create a condition that will capture the code in your QR Reader and pass that to your Spreadsheet to form widget field.

Sample condition:

Kindly test my sample form here https://form.jotform.com/92931374458971. Make sure to generate a QR code from "unique1" upto "unique10" from this URL https://www.qr-code-generator.com/.

I hope that helps. Let us know if you have any questions or if you need further assistance.