Alternatives to Principle for all platforms with any license

Platforms

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Mobile

Web / Online

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Show 10 hidden platforms
  • InVision icon

    InVision

    InVision's prototype tool lets you create interactive wireframes and high-fidelity prototypes. Share your work and get instant feedback right on-screen.

    Freemium Web / Cloud

  • Concept.ly icon

    Concept.ly

    Free Web & Mobile Mockup tool. Transform your Design and Mockups into clickable interactive applications. Perfect way to validate ideas faster with lean startup thinking. Best tool for quick prototyping.

    Freemium Web / Cloud

  • Fluid UI icon

    Fluid UI

    Fluid UI is the fastest mobile app prototyping tool available. Design and test your low and high fidelity app mockups on a mobile device with ease. Simple and UX oriented, this UI tool helps unlock creativity and will save your team...

    Freemium Web / Cloud

  • Marvel icon

    Marvel

    Marvel is a free prototyping tool that transforms static design files (like Photoshop files, PNG etc) and sketches into interactive, sharable prototypes that look and feel like real apps and websites

    Freemium Web / Cloud Android iPhone Apple Watch tvOS

  • Flinto icon

    Flinto

    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...

    Commercial Mac iPhone

  • MockFlow icon

    MockFlow

    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....

    Freemium Web / Cloud

  • Origami Studio icon

    Origami Studio

    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...

    Free Mac Android iPhone

  • Atomic icon

    Atomic

    Work your way up from a blank canvas, or pull in designs from Photoshop or Sketch. Lay out your states and instantly animate between them, without coding a thing. Share your prototypes with anyone or view on any device via a humble URL

    Freemium Web / Cloud

  • Pixate icon

    Pixate

    Pixate generates 100% native prototypes, so you can experience your ideas on device as if they’re completely real.

    Freemium Mac Windows Web / Cloud Android iPhone

    • Discontinued Discontinued per notice on homepage http://www.pixate.com/
  • ProtoPie icon

    ProtoPie

    Compose elaborate interactions and animations easily, and build sensor-aided prototypes without a line of code.

    Commercial Mac Android iPhone

  • Mockup.io icon

    Mockup.io

    A web-based tool to visualize and collaborate on mobile app design and prototypes with the team and clients.

    Free Android iPhone Android Tablet iPad Apple Watch Android Wear

  • Adobe Comp CC icon

    Adobe Comp CC

    Easily lay out ideas and create mock-ups on mobile with real assets like photos, text, shapes and fonts.

    Free Android iPhone Android Tablet iPad

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  • WireframeSketcher icon

    WireframeSketcher

    WireframeSketcher is a software tool that helps quickly create wireframes, mockups and prototypes for desktop, web and mobile applications. It comes both as a plug-in for any Eclipse-based IDE and a standalone version. With...

    Commercial Mac Windows Linux Eclipse

  • App Sketcher icon

    App Sketcher

    App Sketcher is a rapid prototyping tool that creates wireframes and prototypes using HTML and jQuery UI components without coding. It produces interactive prototypes in HTML/CSS/JavaScript that can run in any browser.

    Commercial Mac Windows

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