When comparing Framer Studio vs Justinmind, the Slant community recommends Framer Studio for most people. In the question“What are the best prototyping tools?” Framer Studio is ranked 14th while Justinmind is ranked 16th. The most important reason people chose Framer Studio is:
Framer uses coffeescript for defining animations. CoffeeScript has a low learning curve and as such it can be learned easily even by non-programmers.
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Pros
Pro CoffeeScript integration to define animations
Framer uses coffeescript for defining animations. CoffeeScript has a low learning curve and as such it can be learned easily even by non-programmers.
Pro Multiple device support
Framer supports animation and interaction prototyping for multiple devices, ranging from desktop apps to web apps and mobile platforms. There are already 8 pre-installed devices to choose from, or developers can create their own setup quickly.
Pro Photoshop & Sketch integration
Framer is integrated with Framer Generator, which allows developers to import layers directly from Adobe Photoshop and/or Sketch.
Pro Instant visual feedback
Framer Studio offers and instant preview of the animation that is currently being made.
Pro Reusable components
You can create reusable components that you can use over and over again.
Pro Adaptive and responsive designs
You can create adaptive and responsive designs that will react to the viewport/screen size of the user.
Pro Functional prototypes
You can create HTML prototypes with full interactions.
Pro Supports low, med, and high fidelity
You can create simple wireframes, pixel perfect screens, or anything in between.
Pro Lots of online tutorials
The free Getting Started area has plenty of advice for getting started with Justinmind.
Pro Free forever
After one month trying the pro version, it changes to a completely free version with a few limitations.
Cons
Con Coding required
Framer Studio uses CoffeeScript for prototyping the UI of an app. This can be a problem for designers who don't know CoffeeScript since they would be forced to learn a new programming language in order to use Framer.
Con Mac only
Framer Studio is only supported for Mac. There is no version for Windows or Linux.
Con Expensive
Pricing is $19 per month or $495 for a perpetual license.