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

Using variables on a slider to control the Brightness and Hue of a light bulb

A 3D Interactive Walkthrough of a space using the Proto.io VR Component. Using gaze click interactions you can transition from one 360° scene to another. Import this fully editable project into your Proto.io account to create your own 3D interactive walkthrough.

A Picker selection navigates you to the screen selected. The project uses Variables and States and depending on the picker selection I change a button state to navigate you to the right screen.