So, what exchange platform do you usually use? Most major exchanges such as Binance, Huobi, and Kucoin have launched their mobile app versions. I use Binance app but not for executing orders, only for monitoring charts, price alerts and checking my orders are filled or not.
It is recommended to download apps via the link on the official site.
Usually with binance, but I didn't know it had a mobile option. As you write, it is about reaction time because I do not always have access to a computer. Which one do you use?