I´ve purchased the sounds I want to have (for now at least) rather than subscribed.
How will it be possible for me to make and save my “playlists” in the app?
Do I need to subscribe, if so at what level or is there another way?
Anybody with a registered account can build their own playlists, We call them campaigns. You don’t need any type of subscription to just organise your lists 
You can find out more about Campaigns here; Syrinscape ProTip #01 - Campaign Manager
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