A reverse timer using the handle to designate where the timer begins its countdown.

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

The list and chart include animations created using states. Design from: https://www.sketchappsources.com/free-source/4505-expenses-report-sketch-freebie-resource.html

This is an example of a sign in screen that validates a username and a password. Feel free to import this fully editable project into your own account for use in your prototypes. Use the following to successfully sign in and proceed to the next screen User Name: john Password: proto.io

3 different counters using variables 1. A standard counter 2. A counter from the number of seconds the user sets 3. A countdown

Design Credits: https://www.sketchappsources.com/free-source/4675-marier-shopping-ui-kit-ebizmirli-sketch-freebie-resource.html

Circular progress bar

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

I created this prototype of a wildlife photography app to experiment with horizontal and vertical scrolling interactions. What do you think?