Droplets
Droplets are free extensions built into Droppy, each about the size of an app you would otherwise buy on its own. They are all included in the license, and they only run when you switch them on.
Open Settings, Store to browse the catalogue, read what each one does, and install it. Installing is instant for most: nothing is downloaded and nothing is compiled. A handful need a one-time runtime or a third-party app, and each says so on its own page.
A Droplet that is off costs nothing. Turn one off and its widget leaves the shelf, its shortcuts stop answering, and any permission it asked for stops being used. Nothing you made with it is deleted.
Where they show up
Every Droplet page lists its surfaces as a row of chips. This is what each one means.
A Droplet with options also gets its own page in Settings once installed, reachable from its card in the Store and from Settings search.
All 35 Droplets
Each one has a page of its own: what it does, what it needs, and what it puts on your screen.