Social Media App in App Inventor

Hello everyone.
Today I was scrolling on YouTube and found a tutorial on creating a social media app with CloudDB.
Here is the link: https://www.youtube.com/watch?v=MsNWTDIkI9w .

Kind Regards,
Zain Hassan

More like chat with cloudDB....

Maybe, but no. CloudDB is used for sharing data with other devices. Especially social media apps.
I think you meant using CloudDB for chatting apps.