I simulated a 10 second timer that counts down from 10 to 0. This is very simple to do. All you need to do is change the text property of the text value with a custom value and include a delay of 1 second. Then add a callback for the next number with a delay of 1 second. Repeat this until you get to the number 0. There is no need to use variables to simulate a timer. If you are looking for someone to help you with your prototype, we are available for hire at: http://protonerds.com/

This is an expand/collapse menu example that can be created using container states.

Apply color adjustments and filters to your prototypes to create beautiful interactions and animations. https://proto.io/en/new-features/adjustments-filters/

Pay and delivery

This allows you to swipe up and down the page, using the native safari Browser Behaviour. Useful for any web project you are working on. Comes in both Regular and Private Browser. Also allows you to enter the URL. Carousel thrown in for good measure.

Swipe up and down to choose between cards Credits: Card designs used from: https://www.sketchappsources.com/free-source/2453-credit-card-designs-sketch-freebie-resource.html

An idea of a draggable share button. Much easier with one hand drag than two clicks. Just drag the share icon and you'll see.