Who has the Best Gann Fan software?

Hi, who can tell me which platforms are equipped with really good Gann Fann-"annotation", or "indicator" (not 100% sure what it should be called). I know that eSignals "advanced GET" does it really well, but the cost of that software is really high. It does something like the following, which is however probably only a semi correct or very partial description of what it does: The user can draw a trendline, and then the software will look at how many periods it took for the market to move a specific distance, and then, based on that (days and market move) it will calculate an angle, which can then be used for drawing gann fans. This is, like mentioned, probably a very reductive description of what the sofware does.

Anyway, who has the best software for using Gann Fans?

Anyone?

I have seen software with Gann fan annotations that were not good - ie. if you plot it the 45 degree line will stay literally in a 45 degree angle, which is certainly not good, because when the X or Y axis are manipulated clearly the Gann Angels in the Gann Fan should also change inclination. So these are poor examples of software with Gann Fan drawing tools.

Who knows of a good piece of software for this?

I think wave 59 no bad software and have multi options that allow you to control your angles