Biometric Authentication in AppSheet: Fingerprint Scanner Integration

AppSheet AppSheet Q&A
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1

Hello AppSheet Community,

We currently have an AppSheet application used to manage employee meal pickups.

The current process works as follows:

  1. An employee arrives at a restaurant or dining facility to collect their breakfast, lunch, or dinner.

  2. The restaurant provides a tablet with the AppSheet application.

  3. The employee selects the option to create a new record.

  4. At the beginning of the form, the application requires the employee to scan the barcode on their ID card.

  5. The system validates whether the employee exists and is authorized to receive the meal. If the validation is successful, the employee is allowed to continue completing the form.

  6. The meal pickup is then recorded in the system.

We are currently evaluating a potential improvement to this process and would like to know if anyone in the community has experience with a similar implementation.

Instead of scanning a barcode, we would like to identify employees using fingerprint authentication. The idea is that, from within a form view, the employee would place their finger on a biometric fingerprint reader, the application would validate their identity, and if the validation is successful, allow them to continue filling out the rest of the form, similar to the current barcode-based workflow.

We understand that AppSheet does not provide native fingerprint recognition capabilities, but we would like to know:

  • Has anyone implemented a similar solution with AppSheet?

  • Is it possible to integrate a fingerprint scanner with an AppSheet application?

  • Are there any APIs, third-party applications, or hardware devices that could be integrated to achieve this workflow?

  • Are there any technical limitations within AppSheet that would make this type of implementation impractical, especially when the process needs to occur within a form view?

Any experience, recommendations, or guidance would be greatly appreciated. We are trying to determine whether this is a feasible approach worth exploring further or whether there are fundamental limitations that would prevent its implementation within the AppSheet ecosystem.

Thank you in advance for your help.

2

Unfortunately, this is not possible.

3

What you want to do is not possible with AppSheet.

4

Native fingerprint capture/validation inside an AppSheet form is the blocker here. AppSheet can use the device login/session, but it does not expose a fingerprint-reader input that you can call from a form field the way you can scan a barcode.

If you really need fingerprint, I would treat it as an external kiosk/hardware workflow: fingerprint device → external app/service validates identity → writes a verified employee/check-in row through the AppSheet API or your database. Then AppSheet becomes the record/approval UI, not the biometric capture layer.

For a meal pickup kiosk, barcode/QR/NFC badge is usually much easier to support and audit. Biometrics also add privacy, consent, storage, and retention concerns, so I would only go that route if the business requirement really needs it.