FirmTape is described as 'SPX dealer-positioning terminal: gamma, vanna, charm and the zero-gamma flip rebuilt every second from the 0DTE options tape, with a free 1,000+ session archive and a plain-English backtesting lab' and is a Stock Trading app in the business & commerce category. There are more than 10 alternatives to FirmTape for a variety of platforms, including Web-based, Windows, SaaS, iPhone and Mac apps. The best FirmTape alternative is TradingView, which is free. Other great apps like FirmTape are Quantower, thinkorswim, Sierra Chart and Equity Flow.