50,000 - 100,000 downloads
by Seumas Mac Uilleachan on 15/03/2014
Half the "features" listed must be future enhancements. For instance, can clear history but no way to acuually view or use it.
by mitesh patel on 27/01/2014
I m loving it
by Italo Falcao on 18/12/2013
by Lucas Eduardo Dessy on 31/07/2013
On place of the "-" Appears 
by Douglas Iacovelli on 25/04/2013
There's no way to do percent
by Shounak Patel on 16/02/2013
by Rob Ekl on 27/01/2013
There is no RPN like the description says.
by Warren Cormack on 13/01/2013
there isn't an rpn mode. misleading description.