The Mobile Services extension is only required if using one or more of the following features: in-app messaging, push, acquisition, and location points of interest management.
If you are using the features listed above, you'll need to create separate apps in Mobile Services and separate properties in Launch (as you can only have one environment per Mobile Services extension).
If you are not using the features above and are looking, solely, to setup Adobe Analytics reporting, then you may setup multiple apps in Mobile Services (or configure report suites and processing rules in Adobe Analytics) - then, in Launch with only a single property (as you won't need the Mobile Services extension)...you'll configure the Adobe Analytics extension with all the report suites you want per environment.