This app was mentioned in 5 comments, with an average of 8.40 upvotes
Reviews of the app make it sound like it hasn't been update in a couple years.
iOS as well: https://itunes.apple.com/us/app/craft-check/id775598291?mt=8
EDIT: Also link for the lazy to the play store: https://play.google.com/store/apps/details?id=com.craftcheckapp.craftcheck
Don't waste your time an energy remembering such silly things. Get the app.
That was the wrong link; here's the correct link: https://play.google.com/store/apps/details?id=com.craftcheckapp.craftcheck&hl=en