Hello,

No, You do not have to install any app in your mobile phone if you are using Android mobile as secondary device it should have a front-facing camera and minimum OS version of Android 8 or above and it must have Chrome browser version 80 or above or Edge browser version 45 or above. If you are using iOS mobile device as secondary device it should have a front-facing camera and minimum OS version iOS 13 or above and Safari browser version 13 or above. You need to have the above the mentioned specifications and browser in the secondary device.

You can refer the VITEEE 2021 ORPE Guidelines and Instructions using the link below

https://vit.ac.in/files/VITEEE-online-guidelines.pdf