Hi, King Fung,
We suggest you apply a free account for Lite version from JabezPOS.com.
Then you can have better experience.
The scenario : Restaurant, Retail/Boutique only for Demo.
But if you got a free account from http://Jabezpos.com , you can Login to BiPOS.
If you got any quesiton, you can mail to support@jabezpos.com
Thank you.