You need to have installed Zapya on to both devices to start sharing.
There are multiple ways to share files using Zapya but the below tutorial shows the most basic way to transfer files by generating a unique QR code for one or more files. You can also Create/Join a group or share files to those nearby.
Select files that you want to transfer by clicking the circle in the upper right hand corner of the file so that there is check mark in the circle.
Once files are selected, click the share button at the bottom of your screen to generate a QR code.
This screen will appear once the QR code is generated. Now wait for Phone B to scan it.
On the other device, locate the scan icon located on the upper right hand corner of your screen and click on it.
Aligh the scanner so that the QR Code on Phone A fits inside of the box
Now the files has been successfully saved onto the other device