To use, simply tap the item you wish to define - then select "Done" to see the available results. Add binder layers to narrow down the calculation.
It should be noted that the individual who posted the negative review has not responded to email, and has not been able to substantiate his claim. This app has now been tested on several android devices including Samsung & Dell tablets and works flawlessly. His device was not on the list of compatible devices before he downloaded it. *shrug* Oh well.