Itunes provide URL or all apps in App-store like to get details in JSON/XML Format
http://itunes.apple.com/lookup?id=[appid]
There is no any API for android market i have got online. i tried to get details from these html pages using java script by fetching android market query
https://market.android.com/details?id=com.[companyname].[app name]
but it is not getting fetch all the relevant data as iTunes. Is there any way i can fetch all data from android market app page html code or any API available for this?