PhotoQR is a free iPhone app developed by Actowise LLC, falling under the category of Utilities & Tools. This app allows users to scan QR codes or barcodes directly from their iPhone screen, without the need for an additional scanning device.

To use PhotoQR, simply follow these steps:

1. Take a screenshot of the QR code or barcode you want to scan.

2. Open the PhotoQR app.

3. Tap on "Scan Latest Photo" to scan the QR code or barcode from the most recent photo in your gallery.

For convenience, PhotoQR also offers an "Auto Scan" feature, which automatically scans the most recent photo every time the app is launched.

PhotoQR supports a wide range of code formats, including code128, code39, code93, codaBar, dataMatrix, EAN13, EAN8, ITF, qrCode, UPCA, UPCE, PDF417, and aztec.

With its user-friendly interface and efficient scanning capabilities, PhotoQR simplifies the process of scanning QR codes and barcodes directly from your iPhone's photos.