iFING plus is a membership verification cloud service that utilizes touchless fingerprint and palmprint recognition technology. The app offers three operating modes: site manager mode for businesses, site member mode for individuals, and individual mode. Users can choose between touchless biometric authentication methods, with the app capturing fingerprint or palm images using the device's built-in camera. No personal information is collected, and the app only uses biometric information to verify the user's identity. Users have complete ownership of their biometric information and can create, operate, and discard it as desired.

The major services provided by iFING plus include authentication, password/note management, document scanning, and fingerprint stamping. Members can use the biometric authentication service on different mobile devices and even at offline stores. Passwords and important information can be securely encrypted and backed up to the cloud, accessible only to authenticated users. The app also features a document scanner that can separate the document area from the background and convert characters in images into text using OCR technology. Additionally, the iFING Stamp enables users to create high-resolution fingerprints without the need for ink or expensive hardware scanners.

In business mode, site codes are automatically issued for site creation, and tickets can be purchased to allow members to join the site. Members can register biometric information using iFING and authenticate themselves without a smartphone when visiting the site. Personal mode allows users to join new sites by entering a site code and ID provided by the site administrator. When leaving a site, all personal information, including passwords and notes, is automatically deleted. The FamilyLink+ service enables communication and verification between connected members, such as mothers and students.