Sorry for late reply, I am travelling and so the delay.
Yahoo doesn't support realtime. As of now only Alphavantage can be used for intraday data. And the data is realtime without delay. You can plot 1min, 2min, 3min, 5min, 15min, 30min, and 60min intraday chart.
Backtest and alerts on intraday data are not supported yet but will soon be added.
Intraday will work for you if you had bought Stockalyze within last one year.