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

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

Tik Tok project (Part 1) The videos in the project have been downloaded from: https://www.pexels.com/videos/ https://www.pexels.com/video/close-up-of-wheat-in-field-9917770/ https://www.pexels.com/video/moving-pages-of-books-8994820/ https://www.pexels.com/video/woman-with-freckles-on-her-face-looking-at-the-camera-8055998/ https://www.pexels.com/video/portrait-of-a-beautiful-young-woman-8056090/

Random Graphs created by using variables.

Swipe to see some Porsche models. Tap on a car to get more information on that car. The project is using States and State animations

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

An extended collection of fully animatable UI libraries like triangles, stars, arrows and more, let you bring your idea to life all within Proto.io.