Act is a QR code scanner app designed for iPhone users. It aims to address the common issue of encountering QR codes without knowing which app to use for scanning. With Act, users can seamlessly scan QR codes and directly launch the relevant program.

Act offers a more secure scanning experience by ensuring that only the appropriate app can open a specific QR code through its whitelist mechanism. The app's database covers a wide range of scanning strategies, making it convenient and efficient for users.

Additionally, Act provides a fast scanning solution by allowing users to scan QR codes without opening the app, thanks to the integration of widgets. This feature enables quick access to scanning functionality without the need to launch the full application.