It depends on the market:
Saudi Market: Prices are displayed with a 15-minute delay at no cost. However, your buy and sell orders are always executed at the live market price at the exact moment your order is filled - not the delayed price you see. If you place a limit order based on a delayed price, it may take longer to fill or may not execute at all. A premium real-time subscription is coming soon.
U.S. Market: Prices are sourced from IEX (rather than NASDAQ or NYSE) to keep the service free. You may notice slight differences compared to other platforms - this is normal. Importantly, all orders are executed at the NBBO (National Best Bid and Offer), meaning you always get the best available market price regardless of the displayed quote.