Random iPhone App of the week:The Media Math App - Advertising Calculator is an iPhone app that calculates common media formulas like CPM, GRP, Ratings and CPE, so you don't have to.
Developed by a former IPG
media planner, the app was first released a year ago and calculated 11 different formulas. Users enter any two out of three values and it calculates the third. A recent update includes more formulas
and a help button that explains the math behind each calculation. Download it here.
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