Query about a database

Hello friends, I am trying to learn a little more in the inventor app. In this case I wanted to see which is the most convenient option to work on an app for a food sales business, my question is about what to work on to add products and modify prices of them online, that is, without having to modify the app directly by adding the product and modifying the price (which would only be reflected if the client updates the app).
Can this only be achieved with firebase?

You can probably use almost any online database for what you want to do, it doesn't have to be Firebase, but it is a good choice.