I think both falcon and spider software are developed by the same developers. Spider IRIS has updated lot of features in the recent one year. I have been using Spider IRIS for more than 3 years.
Spider IRIS offers event tracker, we have a lot of options like the candlestick breakout, daily high and low break out, day's high and low breakout, crossover break out etc to track and the scribes name pop up in the tracking window.
We can write our own technical query without using codes and can also backtest from our end.