i am a software developer and thinking about what app and/or program would be good for stock. There are lot of apps out there for stock, option quoting and technical analysis. Since I started doing a lot of day - trading for options around earnings period, I got one thing in mind: try to predict volatility of a stock during earning call based on its past. Question is does past volatility can be a good or fair or poor indicator of an impending earnings call volatility. When I mention volatility, I am only referring to volatily during or just after announcement and thinking to design around this type of volatility data. Otherwise it will be too generic.
I don't know if others do it differently, but I only care about intrinsic value after the earnings...unless you're talking about longer term plays that are incidentally subject to earnings release. I suspect anyone with the technical competence to take this into consideration doesn't need an app to do this for them.