Some, if not most, ClickApps I've used seem more like user preferences than critical settings to be carefully controlled. As such, as a non-Admin but frequent user, it's annoying when I need to get my Admin to activate a ClickApp for something innocuous like "Time Tracking Rollup." Why is that feature behind a wall? What does it matter to any admin whether I want to see my subtasks added up or not? This wastes my time and my admin's time, and results in a hesitance to make use of features that I need to get permission for. If you didn't want to take all the control away from admins, you could alternatively make ClickApps user-activatable by default but allow admins to lock them if desired. Or maybe some are default locked if you think they are more appropriate to be admin controlled.