In actuality, the software isn't real-time. There are utility programs available to pull data from a live feed which the software can then read, but there is an updating delay, albeit slight. That makes the software almost real-time, but not quite real-time.
As far as using the software to find, as you say, high probability entry points for trading, well, I guess that depends on you. The software is useful for measuring and comparing distances between points either on the vertical axis (price) or the horizontal axis (time). You choose the points and the measurements to mark off and the software draws the lines.
Whether you find these lines useful for trading depends on your trading methods. If you use Elliott Waves and want to calculate retracement levels after you've determined a wave count, you'll find that using the software beats using a hand held calculator any day of the week. But again, you have to tell the software which points to use. It doesn't decide which points are important or what the wave count is. In other words, the software doesn't replace your thinking; it just helps you to think more efficiently.
Good trading.