A QR code (abbreviated from Quick Response Code) is a type of matrix barcode (or two-dimensional code), readable by smartphones and dedicated QR code readers. The code consists of black modules (square dots) arranged in a square grid on a white background, which can be read by an imaging device such as a camera or sensor. The information encoded can be text, URL, or other data. Below is a list of the types of information that are common use cases for QR Codes:

A QR code (Quick Response code) is a two-dimensional barcode that can store information in a compressed form.

A SMS QR code is a type of QR code that can be used to send text messages. It is similar to a traditional QR code, but it contains additional information that allows the recipient’s phone to automatically start a text message conversation with the sender.

A PayPal QR code is a type of QR code that can be used to send payments. It is similar to a traditional QR code, but it contains additional information that allows the recipient’s phone to automatically start a PayPal payment conversation with the sender.

A bitcoin QR code is a type of QR code that can be used to send bitcoins. It is similar to a traditional QR code, but it contains additional information that allows the recipient’s phone to automatically start a bitcoin payment conversation with the sender.

A wifi QR code is a type of QR code that can be used to connect to a wireless network. It is similar to a traditional QR code, but it contains additional information that allows the recipient’s phone to automatically connect to the network specified in the QR code.

An email QR code is a type of QR code that can be used to send emails. It is similar to a traditional QR code, but it contains additional information that allows the recipient’s phone to automatically start an email conversation with the sender.

A WhatsApp QR code is a type of QR code that can be used to start a WhatsApp conversation with the sender.

An address QR code is a type of QR code that can be used to send mail to a recipient. It is similar to a traditional QR code, but it contains additional information that allows the recipient’s phone to automatically start an email conversation with the sender.

A Event QR code is a type of QR code that can be used to register for an event. It is similar to a traditional QR code, but it contains additional information that allows the recipient’s phone to automatically register for the event specified in the QR code.

An image QR code is a type of QR code that can be used to store images. It is similar to a traditional QR code, but it contains additional information that allows the recipient’s phone to store the image specified in the QR code.

A video QR code is a type of QR code that can be used to store videos. It is similar to a traditional QR code, but it contains additional information that allows the recipient’s phone to store the video specified in the QR code.

A coupon QR code is a type of QR code that can be used to redeem coupons. It is similar to a traditional QR code, but it contains additional information that allows the recipient’s phone to redeem the coupon specified in the QR code.

A document QR code is a type of QR code that can be used to store documents. It is similar to a traditional QR code, but it contains additional information that allows the recipient’s phone to store the document specified in the QR code.

An app QR code is a type of QR code that can be used to install an app. It is similar to a traditional QR code, but it contains additional information that allows the recipient’s phone to automatically install the app specified in the QR code.

An audio QR code is a type of QR code that can be used to store audio files. It is similar to a traditional QR code, but it contains additional information that allows the recipient’s phone to store the audio specified in the QR code.

A feedback QR code can be used to provide feedback about a product or service. It is similar to a traditional QR code, but it contains additional information that allows the recipient’s phone to automatically send feedback about the product or service specified in the QR code.

A profile QR code can be used to store personal information about the recipient. It is similar to a traditional QR code, but it contains additional information that allows the recipient’s phone to store the personal information specified in the QR code.

Here are a few unique or less common QR code applications:

-Storing passwords: A QR code can be used to store passwords, which can then be used to automatically log in to websites or apps.

-Storing contact information: A QR code can be used to store contact information, which can then be used to automatically add new contacts to the recipient’s phone.

-Storing boarding passes: A QR code can be used to store boarding passes, which can then be used to automatically check in for flights.

-Storing event tickets: A QR code can be used to store event tickets, which can then be used to automatically enter the event.