Import apps?

i have dual booted zorin16 beta and zorin15.3
i know that i can download applications from software store.
but i want to know that
can i import application from zorin15.3 to zorin 16 beta ?
if yes , then how to do that ?

The short answer is "no."

It may be possible for you to copy over configuration files from ~/.config 15.3 to ~/.config 16 Beta, but doing so is risky as the same apps may be different versions. The apps on 15.3 will be from on the Bionic Repository and the 16 beta from the Focal Repository.
Your best bet is to install and configure the apps normally.