Principle is described as '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'. There are more than 25 alternatives to Principle for a variety of platforms, including Online / Web-based, Mac, iPhone, Android and Windows. The best alternative is InVision, which is free. Other great apps like Principle are ProtoPie (Paid), Adobe XD (Paid), Marvel (Freemium) and Framer (Freemium).
We believe the screen is the most important place in the world. That’s why we are dedicated to helping you deliver the best possible digital product experience, with our platform and best practices from your peers.
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InVision vs Principle opinions
This alternative is disputed. InVision is still a legitimate alternative to Principle, but it might have issues that some users think are important.
InVision is not able to create as precise and delicate animations as Principle.
Origami Studio is a free design tool built by Facebook designers for creating interactive UI prototypes. An elegant, layer-based interface allows designers to repaidly create prototypes with layers, build interactions and then share them with others.
Comp CC makes it easy for designers to lay out ideas with real assets like photos, text and shapes. They can then send the wireframe to Photoshop CC, Illustrator CC, InDesign CC or Muse CC to refine and finish.
Flinto for Mac is a comprehensive app prototyping tool that allows you to create anything from simple tap-through prototypes, to comprehensive prototypes with impressive interactions. We’ve carefully designed Flinto for Mac to minimize complexity.
Nothing to download/install, create and access your mockups from anywhere. Add pages with templates and define links to present a clickable prototype. Our components are of medium-fidelity not very sketchy or look too real. Its just right.