What's a more detailed ui mock-up tool to use, rather than balsamiq [closed]

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开发者_如何学C Improve this question

I currently use balsamiq for ui mock ups, but sometimes it does not give me the detail I need for more specific functionality I want to show. e.g. Error messages, validation.

Is there a similar, easy to use tool that allows more customisation than balsamiq's drag and drop?

(I still plan to use balsamiq for simple mock-ups, as I like it. It's quick and easy to use)

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Not as simple to get going with but far more powerful is Expression Sketchflow

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Have you checked out iRise? It's rather cool, altho not cheap.

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I have searched and searched, but yet to find a suitable mockup tool - saying that Balsamiq meets almost all my requirements so have used that exclusively.