NextStage Gender Persuader Tool (NSGP) analyzes on and offline material and reports whether the material favors a male or female audience. NSGP is based on NextStage's patented technology, been in use as a desktop tool since 2003 and in 2009 was independently evaluated at 98%+ accuracy. Bet you wish your current tool could boast that, huh? NextStage: Results. Nothing Else. Nothing Less.