Several weeks back we started working on a design refresh for the team over at AppGravity. They are a search engine for apps outside of the constraints of the native app stores controlled by Apple and Google. They have been enhancing their site to include such community features as app ratings and reviews. Over the next several weeks we will be rolling out phased design upgrades an enhancements to an already awesome engine.
Check out their site for all your App needs, join the community and contribute.