The complication updates in real time and displays the current sets, allowing to see who’s playing at a glance. It supports up to two stages.
A tap on the complication gives access to the full lineup, past and before. Easily find out who plays when and where! No stages limit.
Load a lineup before going to the party: the data is stored in your Apple Watch. You’ll then be able to see it even if you’re offline.
Apple has detailed instructions on how to cancel or change your subscription right here.
If you’re a developer, yes, as the data is open-source. Just checkout the repository and follow the instructions to open a PR! If you’re not a developer, find a friend who is to help you ;-).