Principle makes it easy to create animated and interactive user interface designs. Go beyond static mockups and create living designs that express feeling. Whether you're designing the flow of a multi-screen app, or fun new interactions and animations, Principle lets you create designs that look and feel amazing.
Inspired by studying how the world’s best user interface designers work, Principle combines the design, animation, and interaction tools you need in a lightweight, easy-to-learn interface. When you're done, you can show animated designs to clients, managers, and the development team.
How Licenses Work
Licenses are assigned per-computer. A license includes one year of updates. You can continue using the Principle after that year of updates ends. You can also purchase a new license to get the latest version and another year of updates.
Purchasing with a quantity of more than one will give you one license key that can be used on that number of computers.
Buying For Someone Else
Licenses can be purchase for someone else by clicking the gift icon at checkout. The giftee will get an email with the license keys, and you’ll get one with the invoice.
You can generate an invoice by clicking the link in the email you'll receive after purchase.