> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.unrubble.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# QR Card

**QR card** is the unique ID of every employee. It’s necessary to clock in by using 
* [Time Clock by Unrubble (iOS/Android)](https://unrubble.com/products/time-clock) mobile app 
* KIOSK mode.

## How to print QR codes?

![](https://storage.crisp.chat/users/helpdesk/website/11ee26a505815800/qrcodes_1rvl8d5.png)
1. Select all employees
2. Click `Print QR cards` button

## Install the application Time Clock by Unrubble ⏱
Install the mobile application called `Time Clock by Unrubble` on a tablet/smartphone. After logging in with the main administrator's data once, it will be ready (in front camera mode) to read QR cards.