When comparing Keynote vs Fireworks, the Slant community recommends Fireworks for most people. In the question“What are the best mockup and wireframing tools for websites?” Fireworks is ranked 4th while Keynote is ranked 24th. The most important reason people chose Fireworks is:
From lo-fidelity wireframe, into clickable prototype and then assemble the images for the final hi-fi build as well.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Imports nearly every type of asset
Can import all kinds of assets (images, videos, PDFs, sounds) into mockup without hassle.
Pro Animations and transitions
Keynote currently is one of the very few tools that supports animation of elements and transition of views without programming.
Pro Text Styles makes it easy to create typography systems
Pro Smart Snaps
Keynote has alignment grids (aka snap to grid feature) that snaps to end, midpoints, baselines etc of objects and grids. They are super useful when you want to follow a structured layout for your wireframe.
Pro Can be used for the entire life-cycle of the design
From lo-fidelity wireframe, into clickable prototype and then assemble the images for the final hi-fi build as well.
Pro Layer Sharing
Features such as 'Layer Sharing' allows you to quickly update shared components such as headers across multiple pages. Other mockup tools such as Mockingbird will require you to manually propagate changes across all the pages.
Pro PSD compatible
Open PSD files
Pro Awesome Symbol Libraries
A significant advantage over web-app style mockup tools are the symbol libraries for Fireworks.
From boagworld:
Both symbols, styles and vector shapes can be saved for re-use and collected into useful library resources. In addition Fireworks ships with a common library of useful objects including buttons, browser and application elements for both Mac and Windows look and feel.
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Cons
Con Only available on Mac and it's file are not compatible with Microsoft Windows
Con Is being phased out
Adobe is ditching Fireworks. So those nasty bugs will never get fixed.