High Frequency Trading Simulator is described as 'Traditional OHLC-based backtests assume your order fills instantly at the last price. In high-frequency markets, that assumption costs money. HFTS uses a discrete-event simulation (DES) engine to model every order, fill, and market update with microsecond precision' and is a Stock Trading app in the business & commerce category. There are more than 50 alternatives to High Frequency Trading Simulator, not only websites but also apps for a variety of platforms, including Windows, Android, iPhone and SaaS apps. The best High Frequency Trading Simulator alternative is TradingView, which is free. Other great sites and apps similar to High Frequency Trading Simulator are Koyfin, MetaTrader, Investing.com and FinViz.