Principle 4.0 Interface Design
Principle makes it easy to create animated and interactive user interface designs. Whether you’re designing the flow of a multi-screen app, or new interactions and animations, Principle lets you create designs that look and feel amazing.
Built for the Biggest Imaginations
There are a lot of things you might want to design: a short animation, a slick interaction, or an extensive multi-screen app. No matter what you’re doing, you can do it with Principle.
Pick Up Where You Left Off
Import your designs from Sketch with a simple, one-click importer. Your Sketch designs will apper in Principle, ready for you to breathe new life into them.
The biggest performance issue we’ve seen with designers’ files was that they were using images way larger than needed. These huge images would eat up memory and bring the editor to a crawl. Savvy use of smaller images would avoid this, but when you’re rapidly iterating on an idea, you don’t want to worry about optimizing your image sizes! In Version 4, Principle is more intelligent about how it handles large images, which makes the editor FAST. Files that used to take multiple minutes to open, now appear in seconds and zooming and panning is always zippy. The improvements were so good that we also applied them to the iOS Mirror app to make its playback smoother
Design For Web, Desktop and Mobile
Choose a device preset or enter a custom Artboard size to design for your favorite platform. Hover events and mouse wheel scrolling make it easy to make web and desktop prototypes that feel like the real thing.
Share Your Designs
Principle Mirror for iOS lets others view your designs on their device. While designing, you can interact instantly by plugging your device into the computer. You can also export a standalone Mac app for others to view.