Thank you for your time and your valuable answer. Actually I'm not a trading expert and or signal businesser. Just a hobby coder who recently read about what are indicator signals and how do they work. Not sure when the bear market come are these signals profitable or not, it's my first bull market since coding about it.

I think the tool is useful to learn about indicator basics. The services are totally free, without ads but just referral links which are not affect user's browsing experience.

and also "just for educational purposes" and "make your own research".