UCloud Plus is a cloud-based attendance checking service that allows students to check in from anywhere in the classroom using their smartphones. The service uses Bluetooth Low-Energy devices installed in the classroom to authenticate the user's location and check their attendance.

One of the advantages of UCloud Plus is that educational institutions can use the service without having to install a separate attendance system. The app is available for free download, and users can easily authenticate themselves and start using the service.

UCloud Plus is also known as U-Check, UCHECK, 유체크, ucheck, 유클라우드, and UCloud. It falls under the Education & Reference category and is available for Android devices.