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      Gumroad Library

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      $129

      Principle

      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.

      Purchasing FAQ

      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.

      Multi-User Licenses

      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. 

      Invoices

      You can generate an invoice by clicking the link in the email you'll receive after purchase. 

      Other questions? 

      See the full FAQ

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      • You'll get a license key that works for Principle updates released within a year of your purchase.
      • Free Updates 1 Year
      • Compatibility macOS 10.13 or later
      • Version 5

      Purchasing Principle...

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      Your rental will be available for 30 days. Once started, you’ll have 72 hours to watch it as much as you’d like!

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        Gumroad Library

        Download from the App Store or text yourself a link to the app

        Download from the App Store or text yourself a link to the app

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