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

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

Movies & Series App project Design Credits: https://www.sketchappsources.com/free-source/2896-sample-iphone-x-movies-app-sketch-freebie-resource.html

Recreation of the animation from: https://www.sketchappsources.com/free-source/1978-whiskey-jack-daniels-app-sketch-freebie-resource.html with a snap carousel

New version to listen to your favourite music. I build this prototype for my (Designing for usability) module at university. It allows you to experience the joy of music in a different, flexible, and adaptable way. This is the first version of Mid-High Fidelity stage of prototyping. Feel free to comment on it, and suggest anything you feel it needs to be added. Thank you.

I used part of the "Laundry App UI Kit Sketch Resource" design that was designed by Satheesh Kumar at: https://www.sketchappsources.com/free-source/3397-laundry-app-ui-kit-sketch-freebie-resource.html to create a quick prototype