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

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

An example of a date picker that can be imported and used in your project. (Basic use of variables) tags: calendar, picker, date picker

Random Graphs created by using variables.

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

Re-creation of the apple.com mobile site flyout menu with subtle animations. See how it was re-created step-by-step: http://docs.proto.io/videos/prototyping-subtle-animation/ Enjoy.

This is the prototype of my favorite music player, Poweramp. I've tried to recreate the Plastic HD theme of the app interface and made it pretty close to the original visually which includes some of the transitions. This design has been made with Adobe Photoshop CC and Material Design Library of Proto.io. Hope you guys like it! Would love to know your views on it and how can we improve it :) Cheers! Aman P.S: Turn up the speaker ;)

This prototype is basically just a Snapchat login very well designed, with most of the replicable elements of their app.

A Sign up - Sign in page example project using Variables and States to validate the correct user input in both pages.