**IBKR Lite offers $0 commissions; IBKR Pro uses a per-share model. Where to Practice (Paper Trading)

Offers trading for most securities, including roughly 100 select OTC stocks.

Highly intuitive mobile app with over 50 technical indicators and customizable charts.

Provides access to the professional-grade trading suite, featuring over 350 technical indicators.

: Best for those interested in automated trading simulations.