Help - adding a "message board" or "review" feature

I want to add the ability for users to post statements for or against a topic of discussion, kind of like a review. Other users would be able to see it, but not comment on it. I cannot figure how to do it. Is it possible?

use an online database of your choice to store and read statements

A very good way to learn App Inventor is to read the free Inventor’s Manual here in the AI2 free online eBook … the links are at the bottom of the Web page. The book ‘teaches’ users how to program with AI2 blocks.
There is a free programming course here and the aia files for the projects in the book are here:
How to do a lot of basic things with App Inventor are described here: .

Also do the tutorials to learn the basics of App Inventor, then try something and follow the Top 5 Tips: How to learn App Inventor


Trying to push the limits! Snippets, Tutorials and Extensions from Pura Vida Apps by Taifun.

Thanks. Very helpful!