Use a variable to add the costs of premium features that are selected or deselected using an iOS switch component. See a video of how to do this step-by-step in this webinar: https://support.proto.io/hc/en-us/articles/115001585411-Model-advanced-prototypes-that-use-variables-part-II TAGS: variables variable math addition switch switches fire an items event

Zero inbox example using the 'Slide to Delete' pattern

A project which sorts your players according to the number assigned to them by highest to lowest. You can clear to reset everything back. Created using containers and variables. Can be used to make sure everyone's turn in the game is mapped out correctly.

A halloween project i have put together using the Proto.io Halloween icon set: https://proto.io/freebies/free-halloween-icons/

Music App project Design Credits: https://www.sketchappsources.com/free-source/2847-apple-music-app-sketch-freebie-resource.html