QuerySeekerQuerySeeker is tracking the Ranking on iTunes. (Beta Version) iPhone / iPad / Music Store / Podcasts If you would like to get a ranking more category or small time scale, you can get a ranking XML from QuerySeeker API. (more ..) What is the reason the ranking up or down ? So, we are developing an auto real time analytic service to get an answer. This service release will be in near future. News 1
https://jp.techcrunch.com/2010/09/16/jp20100916iphone-marketing-research-tool-queryseeker-will-be-launched-soon/
