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

I replicate this cool "Switching tabs" animation by talented Jokūbas- https://dribbble.com/shots/1984025-Switching-Tabs For the creation of this animation, I simply used various state transitions.

Say hello to our brand new visual easings manager! This project was created using custom easings and more specifically cubic bezier.

I used the Sketch "Delicious" free UI Kit for a food recipes app. It includes 11 pixel-perfect screens. I just added Proto.io interactions and created a great prototype! This Delicious UI Kit was designed by Robert Anitei Sketch source: https://www.sketchappsources.com/free-source/1765-delicious-ui-kit-sketch-freebie-resource.html

A project which simulates a collision between 2 objects. Freely drag the objects onto each other in order to have their core color change when colliding.