NewsBlur has an organizer that provides this exact info. Just sort of last update (or even stories per month) and mass delete. It&#x27;s somewhat new but it makes a world of a difference. The organizer is on web and <i>just</i> launched on iOS. See <a href="http:&#x2F;&#x2F;blog.newsblur.com" rel="nofollow">http:&#x2F;&#x2F;blog.newsblur.com</a>.