This app was mentioned in 2 comments, with an average of 1.50 upvotes
I've been using it and liking it. I've talked to them a bit and asked if they could include some more custom labeling and editing stuff (like to exclude a month of a subscription that was abnormal. But otherwise it's really good so far.
But there's so many options, for example:
http://www.asktrim.com/
https://play.google.com/store/apps/details?id=com.zriton.subscribly
http://subscript.me/
http://outflowapp.com/
http://www.bobbyapp.co/
https://killbill.io/
http://subscript.me/
And many more...