I know that for smartphones based on android there are so many trading applications, but what about trading from iPhone? What program can provide access to the stock exchange?

Not only for android, but also for iPhone there is a universal trading platform, this is MetaTrader 5 on macOS https://fbs.com/blog/how-to-install-metatrader-5-on-macos-288 and it gives access to all web terminals and the crypto market.

Trading for me is a hobby that has grown into work, because now I prefer crypto day trading and there I can realize my plans and ambitions. A long time ago, when I was just starting out, I could not even imagine that it was possible to optimize the process of transactions with bitcoin so much.

What are you planning to trade? I highly recommend you consider getting into forex trading first, it'll help you get prepared for the other markets that are way more complicated. You can check out http://usforexbrokers.com/compare/ and find a reliable broker, and I'm sure it won't be a problem for you to start making money in this field and start profiting.

Hey. MetaTrader 4/5 is the best. I can also adise you of the best forex signals here