VisualCode is a free iPhone app developed by Alex Ruperez that allows users to generate and scan QR codes. Whether you need to quickly share your contact information or transmit other types of data, VisualCode has you covered.

One of the standout features of VisualCode is its integration with Siri, widgets, and 3D Touch. This means you can easily generate your contact visual code using voice commands or shortcuts right from your home screen.

But VisualCode doesn't stop at just contact information. You can also generate visual codes for existing or new contacts, calendar events, Wi-Fi networks (WEP or WPA/WPA2 Personal), text or links copied to the pasteboard, and even PayPal payment requests. The app supports more than 15 visual code types, including QR codes, BarCodes, DataMatrix, Code128, and more.

To add a personal touch, VisualCode offers a color picker feature, allowing users to customize the appearance of their visual codes. No more boring black and white codes!

Another noteworthy feature is the app's history function, which automatically saves everything you read. This makes it easy to revisit previously scanned or generated visual codes.

In terms of security, VisualCode utilizes Google Safe Browsing technology to provide warnings when opening links that may lead to dangerous websites or files.

With its user-friendly interface, wide range of features, and emphasis on security, VisualCode is a must-have utility for anyone who frequently deals with QR codes.