With Magnolia 5.3.19, the app has been deprecated and removed from the App launcher. For more information see Release notes for Magnolia CORE 5.3.19.
The Cache tools app provides tools to flush and refresh the cache. You can access the app in Tools > Cache tools. See Cache module > Tools for more information about using the app.
The Cache tools app is a 4.5 legacy app installed by the UI AdminCentral module. The Tools app group that this app belongs to is only available to the
superuser role. This is configured in the app launcher layout. The app is configured at Configuration >