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/

Spoon is a dating app concept aiming to make online dating more efficient, and fair. The concept has the following main characteristics: 1) Gender equality ⁠— the app decides who makes the first move; 2) Time efficiency — no need to put in hours of work to meet somebody; 3) Incremental steps towards a clear goal — no limbo states, no endless/goalless swiping; 4) Fairness, respect, and accountability for its users — choosing someone means you commit resources to that person, no second thoughts allowed; 5) Match exclusivity — chat with only one person at a time; no competing for one’s attention; 6) Fast and fluid interactions — chat while both users are online and active, no offline messages. I hope you like it.

Shopping cart using variables to calculate selected item amount, and total costs using variables. Project also includes a thumbnail gallery

Book a seat to a Hall, count selected seats, and calculate total cost of seats booked - Helios Hall is the interactive Hall for the seat reservation

The project contains numerous examples completed using variables and conditional logic.

A demo created using draggable and rotation features.

An as close as possible copy of the IFTTT onboarding experience. This prototype is also made in 4 other tools (Pixate, Origami, Framer & Form) to compare the differences between them. More info: http://medium.com/sketch-app-sources/five-app-prototyping-tools-compared-form-framer-origami-pixate-proto-io-c2acc9062c61 Original app: http://appstore.com/IFbyIFTTT

Here is the set of prototypes from the Pro Tips and Tricks webinar: 1) Propagate Events to Items Below 2) Containers as Symbols 3) Conditional Animation 4) Screen Interaction 5) Sketches into Prototype Here is the video of the webinar: http://docs.proto.io/videos/pro-tips-tricks/ The video is broken down with time-codes on Vimeo here: https://vimeo.com/103316955 (under read more) They are also below. Enjoy... > Create popover menu with click through to icon below 4:08 > Propagate all events to the item below 4:08 > Using containers as symbols for efficiency (navigation assets etc.) 11:59 > Customizing a navbar component 14:55 > Customize a tabbar component 16:48 > Convert navbar to a container to repeat (as symbol) 19:10 > Convert tabbar to a container to repeat (as symbol) 19:43 > Convert text box to a container to repeat (as symbol) 19:49 > Using a container to create change font style for repeated Titles and labels. 21:55 > Conditional animations triggered by drag gesture using variables (mailbox swipe). 23:04 > Adding containers to canvas 24:44 > Using the draggable gesture 25:25 > Variable Manager 26:00 > Using onDrag variable to change an objects opacity 26:38 > Range of property values that can be changed based on a drag gesture 27:45 > Capturing the X position from dragging an object using a variable 27:57 > Creating a new value if/then argument using shorthand javascript to change opacity using a variable. 29:00 > Creating a callback to the change a property that reads from a variable. 29:52 > Using the onDragEnd gesture 30:33 > Change the Left property using a variable triggered by onDragEnd 30:49 > See range of properties that can be changed from onDragEnd gesture. 31:04 > Using On Screen Show Interaction for creating an automatically cycling carousel. 35:25 > Importing paper sketches (photos of them) to use as background for layering assets and interactions. 40:28 > Toggling between a sketch and your higher fidelity mockup using states. 44:25 > Duplicating interactions between states 45:18

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