From the website:
BookTrakr tracks your books so you don’t have to. Every day, it logs into Amazon KDP, B&N NOOK Press, iTunes Connect, Google Play, Kobo Writing Life, Draft2Digital, Smashwords, and CreateSpace, and downloads your sales numbers. It scours the stores for reviews, tallies up readers’ star ratings, and scans your book’s rankings on bestseller charts. Then it slices and dices all that raw data into pretty charts that tell the story of your books at a glance.
Oh, and it sends you an email summary every morning, too!
BookTrakr is free for the first two weeks.