Ranked in these QuestionsQuestion Ranking
Pro Resuable components
You can create a component (widget) that you can use over and over again.
Pro Offers resources to help you get proficient with the software
There is a wealth of online training including videos for getting the basics down, a great community to mine, and support team to help assist with more technical details.
Available for use on Windows and Mac.
Pro Supports web and mobile prototyping
Allows creation of interactive HTML mock-ups which is accessible for both websites and mobile applications.
Con Moderate learning curve
Con Expensive [$289-$589]
There is a free trial to work with Axure, but there is a hefty price for the standard edition at $289. Even more so, the Pro edition will cost $589.