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

an app like uber but for long distances, the drivers sets the price and the riders choose the drivers

UnMess enables you to work more efficiently by muting messages and calls from your workplace when you need to