When comparing UXPin vs Principle, the Slant community recommends Principle for most people. In the question“What are the best tools for prototyping mobile interactions/animations?” Principle is ranked 14th while UXPin is ranked 17th. The most important reason people chose Principle is:
You can find videos for the Principle app course [here](https://www.youtube.com/playlist?list=PLWlUJU11tp4deQOnSFNn_ekpS9GA5_7yP).
Ranked in these QuestionsQuestion Ranking
Pro Import from PhotoShop and Sketch
A pro UXPin account will allow you to import existing projects from PhotoShop or Sketch.
Pro Extensive library of elements and patterns
UXPin offers elements from a wide range libraries. This includes responsive frameworks such as Bootstrap and Foundation, and libraries specific to mobile prototyping.
Pro Actively developed
UXPin is constantly being updated with new features.
Pro Comprehensive help & examples
You can find videos for the Principle app course here.
Pro Simple Sketch import
Import Sketch layers easily to animate your designs.
Pro Build iOS transitions & animations easily
All the iOS easing info is built-in.
Con Expensive subscription model
$29 per user/mo ($350 pa) will soon rack up compared to a standalone product like Axure PRO ($450) which has a license that lasts years (they have given out free updates for the last 2 versions).
Con Steep learning curve
UXPin is one of the more complex prototyping tools. Combined with a lack of documentation, it can be discouraging for first time users.
Con Mac only
Sadly iOS centric.