Remove unused software

What you are asking is not possible. Even though Jamf does report application usage, it can not be used in a smart group since there are no application usage criteria or any kind of report. You can create an EA for specific applications you want to get the last time it opened but I wouldn't get a report for all apps since you can't remove the apps that come with the OS. 

@junjishimazaki maybe I am not understand what you are getting at, but you can remove apps that came with the iOS. I do this on all of our iPads through a configuration profile. Under Restrictions --> Apps --> Restrict Apps --> App usage. In the dropdown box I select "Some apps not allowed" and I type in what I want gone....if this does not remove them at the very least it hides from being used. As far as making this decision through application usage criteria I have no idea.

Sorry for the confusion, you didn't state it was for iOS

No this is for macOS not iOS.

Well, you just mentioned iPad in your last statement. So, I don't know why you stated that since it has nothing to do with Mac OS.  But, either way, as I stated there are no smart group criteria for app usage. So, you have to create an EA.

Ah no I never said anything about iOS.