Tool apps are Apps are apps that can run Actions or provide tools for your Expert.
For example Tavilysearch is a Tool App that can search for information on the internet.
Wolfram Alpha is a Tool App that can calculate mathematical problems.
Sometimes you need an app on your account. for example if you want to test an App before you add it to your Expert.
You can add an App to your Account by ticking the “public” checkbox when you add an App window.
To add an App to your Expert you have to go to the App Store and click on the “connect” Button of the App you want to add.
normally you need to tick the “private” checkbox after that there will be your list of Experts you can add the App to.